A&P I Final
What separates groups of muscles? perimysium fascia endomysium fascicles epimysium
fascia
A suture is an example of a(n) fibrous joint. none of the above. plane joint. synovial joint. cartilagenous joint.
fibrous joint.
The central sulcus separates the two parietal lobes. occipital and temporal lobes. parietal and occipital lobes. temporal and frontal lobes. frontal and parietal lobes.
frontal and parietal lobes.
Planning, motivation, and social judgment are function of the brain associated with the occipital lobe. the frontal lobe. the parietal lobe. the temporal lobe. the insula.
frontal lobe
_____________ cells in simple columnar and pseudostratified columnar epithelia produce protective mucous coatings over the mucous membranes. Basement membrane Keratinized Simple Goblet Basal
goblet
Histology is the study of tissues. cells. molecules. history. organ function.
tissues
Posterior means toward the middle or midline of the body. closer to the head. closer than another structure to the point of attachment to the trunk. away from the surface. toward the back of the body
toward the back of the body
The first electron shell of an atom can hold a maximum of 8 electrons. 2 electrons. 1 electron. 4 electrons. 16 electrons.
2 electrons
Organize the following structural levels of the human body from simplest to most complex. (1) cell (2) tissue (3) chemical (4) organ system (5) organ 3, 1, 2, 4, 5 2, 3, 1, 4, 5 1, 2, 3, 4, 5 3, 1, 2, 5, 4 4, 2, 3, 1, 5
3, 1, 2, 5, 4
Normal blood pH is maintained within a range of 7.35 - 8.5. 1.0 - 14.0. 6.5 - 9.5. 7.35 - 7.45. 4.5 - 5.5.
7.35 - 7.45.
A decomposition reaction can be symbolized by C + D → AB. none of the above. A + B → C + D. AB → A + B. A + B → AB.
AB → A + B.
In a human body, which of the following systems helps maintain homeostasis? All of the choices are correct. cardiovascular digestive nervous endocrine
All of the choices
Which describes the anatomical position? All of these apply Thumbs point away from the body Body is upright Feet are flat on the floor Palms are facing forward
All of these
In which of the following is rotational movement possible? Ball-and-socket joint Pelvic joint Hinge joint All of the above Condyloid joint
Ball-and-socket joint
The central nervous system contains_____________ while the peripheral nervous system contains_________________. The nerves that extend to the outlying parts of the body; spinal and cranial nerves The nerves that extend to the outlying parts of the body, spinal and cranial nerves; brain and spinal cord Brain and spinal cord; the nerves that extend to the outlying parts of the body, spinal and cranial nerves. The brain and spinal cord; the nerves that extend to the outlying parts of the body
Brain and spinal cord; the nerves that extend to the outlying parts of the body, spinal and cranial nerves.
Which of the following substances account for more than 95% of the human body? Calcium, phosphorus, hydrogen, nitrogen, iron, zinc Carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur Calcium, hydrogen, oxygen, nitrogen, potassium, sodium Carbon, calcium, nitrogen, hydrogen, oxygen, fluorine Carbon, phosphorus, oxygen, hydrogen, silver, arsenic
Carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur
The type of muscle fibers that are striated, form Y-shaped branches, and have junctions called intercalated discs are Skeletal and voluntary Skeletal Smooth Voluntary Cardiac
Cardiac
Which of the following statements concerning the brainstem is true? The brainstem is a relay for sensory input. The brainstem is responsible for higher level thinking skills. All twelve cranial nerves enter or exit from the brainstem. The brainstem consists of the medulla, pons, and cerebellum. Damage to the brainstem is usually fatal.
Damage to the brainstem is usually fatal.
___ carry motor commands from the brain along the spinal cord. Ascending tracts Descending tracts Spinal nerves Both anterior and posterior roots Cranial nerves
Descending tracts
The connective tissue wrappings of a nerve, beginning at the outermost layer, are Perineurium → endoneurium→ epineurium Endoneurium → perineurium→ epineurium Epineurium → perineurium→ endoneurium Epineurium → endoneurium→ perineurium Perineurium → epineurium→ endoneurium
Epineurium → perineurium→ endoneurium
Which of the following four groups of bones, based on shape and with an example of each, is correct? Long bones-wrist and ankle bones Short bones-arm and leg bones Short bones-facial bones Irregular bones-bones of the backbone Flat bones-facial bones
Irregular bones-bones of the backbone
Which contraction occurs when you try (unsuccessfully) to move a wall? Isometric Isotonic
Isometric
Lateral to the umbilical abdominopelvic region are the _____ regions. Iliac Lumbar Hypogastric Hypochondriac Epigastric
Lumbar
Maintaining a stable internal environment typically requires inadequate nutrition. a source of external heat. energy input. negative feedback positive feedback.
Negative feedback
Which of the following lists best illustrates the idea of increasing levels of complexity? Tissues, cells, organs, organelles, organ systems Cells, tissues, organelles, organs, organ systems Cells, organelles, organs, tissues Organelles, cells, tissues, organs, organ systems Organs, organelles, organ systems, cells, tissues
Organelles, cells, tissues, organs, organ systems
Which event of mitosis is mismatched with its phase? Prophase - chromosomes form and the nuclear membrane breaks down Metaphase - chromosomes line up down the center of the cell Prophase - chromosomes split Telophase - nuclear envelope reforms around chromatin Anaphase - chromosomes split and move to opposite sides of the cell
Prophase - chromosomes split
Which of the following is the correct order of mitosis phases? Prophase, metaphase, anaphase, telophase Anaphase, prophase, interphase, telophase Interphase, prophase, telophase, metaphase Metaphase, telophase, prophase, anaphase
Prophase, metaphase, anaphase, telophase
Which of the following is not a function of bones? Provide points of attachment for muscles Store inorganic salts Contraction Produce blood cells Protect internal organs
Provide points of attachment for muscles
Nucleic acids include enzymes and RNA. steroids and triglycerides. RNA and DNA. proteins and DNA. vitamins and minerals.
RNA and DNA.
The nucleolus contains RNA and protein. gelatin. DNA only. protein and ribosomes. DNA and protein.
RNA and protein.
Which of the following is true? Skeletal muscle is capable of spontaneous contraction. There is a small amount of smooth muscle in the heart. Cardiac muscle cells have multiple nuclei Smooth muscle is found in the walls of hollow organs. Smooth muscle cells are long and cylindrical.
Smooth muscle is found in the walls of hollow organs.
Which of the following is not a type of fibrous joint? Symphysis Sagittal suture Coronal suture Syndesmosis Gomphosis
Symphysis
Which of the following is not a function of bone? To protect soft tissues. To provide a framework for the body. To house the tissue that manufactures blood cells. To provide nervous communication from bone to muscle. To store inorganic salts.
To provide nervous communication from bone to muscle.
A molecule is a negatively charged ion. a positively charged ion. a combination of atoms held together by chemical bonds. the alteration in the three-dimensional structure of a protein. a substance that conducts electricity when placed in solution.
a combination of atoms held together by chemical bonds.
The arrector pili muscle is attached to a sebaceous gland. skin on the nose. the nail bed. a hair follicle. the hypodermis.
a hair follicle
Electrolytes that release hydrogen ions in water are electrons. bases. catalysts acids toxins.
acids
What type of cells contain large amounts of lipids? mast cells stem cells osteoclast adipocytes macrophages
adipocytes
A mixed nerve consists of both myelinated and unmyelinated fibers. glial cells and nerve cells. association and integration neurons. afferent and efferent fibers. spinal and cranial fibers.
afferent and efferent fibers.
Some ___ neurons are specialized to detect stimuli, whereas ____ neurons send signals to the effectors of the nervous system. motor; sensory afferent; efferent efferent; afferent afferent; association efferent; association
afferent; efferent
The head, neck, and trunk make up the ______ region of the body. Caudal Thoracic Axial Appendicular Cephalic
axial
Sweat glands... aid in cooling the body. produce a secretion that protects the body from growth of bacteria. serve as "anchors" for the arrector pili muscles. produce a secretion that oils the hair and skin. are not involved in the homeostasis of body temperature.
aid in cooling the body
Chemistry is important to the study of physiology because drugs are chemicals. all of the above. we eat chemicals. chemical reactions enable our bodies to extract energy from nutrients. body functions reflect cellular functions that reflect chemical changes.
all of the above
Joints bind bones. often contain cartilage. enable body parts to move. allow bones to grow. all of the above
all of the above
Lipids are organic. all of the above are classified as macromolecules. include phospholipids, cholesterol, and fats. are insoluble in water.
all of the above
On the pH scale all of the above. a tenfold difference in hydrogen ion concentration separates each whole number pH values below 7 are acidic. pH values above 7 are basic. the lower the whole number on the scale, the greater the H+ concentration.
all of the above
The epidermis protects the skin against mechanical injury. keeps out harmful chemicals and pathogens. loses some cells every day. retains water in deeper skin layers. all of the above.
all of the above
Cerebrospinal fluid protects the brain protects the spinal cord. all of the above. contains substances that influence breathing provides a pathway for waste to enter the blood.
all of the above.
When Bobby performed curls, his biceps brachii and the triceps brachii served as _______. antagonists secondary mover myomeres fascicles synergist
antagonists
Synovial joints are different from both fibrous and cartilaginous joints because synovial joints use fibrous connective tissue to hold the bones in the joint together. are not freely moveable. are enclosed by a joint capsule. are only temporary; they are replaced in the adult. generally have both bones in the joint fused together.
are enclosed by a joint capsule.
Haversian systems or osteons are found in spongy bone tissue. are avascular. lack concentric lamellae. are the basic units in compact bone tissue. do not contain osteocytes.
are the basic units in compact bone tissue.
The subcutaneous layer of skin consists of blood and nerves. epithelial tissue. epithelium and areolar (loose) tissue. areolar (loose) and adipose tissue. adipose tissue and skeletal muscle tissue.
areolar (loose) and adipose tissue.
What type of tissue covers the ends of long bones? periosteum elastic cartilage fibrocartilage articular cartilage cancellous bone
articular cartilage
Joints are also called ligaments. periosteum. medullary cavities. annotations. articulations.
articulations.
The smallest particle of an element that still exhibits the chemical characteristics of that element is a(n) electron. chemical bond. proton. atom. orbital.
atom
In a covalent bond oppositely charged atoms repel. atoms share pairs of electrons. oppositely charged atoms attract. one atom shares and another atom gains electrons. all of the above.
atoms share pairs of electrons
Which is the correct order of the connective tissue layers of a skeletal muscle, beginning with the outermost first? a: Endomysium b: Epimysium c: Perimysium b, c, a a, b, c c, a, b b, a, c c, b, a
b, c, a
Mikes tendon was torn during a twisting action. As a result, it no longer attaches the muscle to the ___. fascicle myomere joint ligament bone
bone
Fluid-filled sacs containing synovial fluid are called tendons. bursae. ligaments. menisci. peduncles.
bursae.
Dermatomal maps are important clinically because they indicate what muscles are innervated by each spinal nerve. can be used to check for motor function. can be used to detect cranial nerve damage. locate the position of cranial nerves. can be used to help locate nerve damage.
can be used to help locate nerve damage.
Small channels extending through the bone matrix are lamellae. lacunae. periosteum. trabeculae. canaliculi.
canaliculi.
A passageway connecting neighboring osteocytes in an osteon is a osteocanal. lacuna. canaliculus. central canal. lamella.
canaliculus.
Which type of muscle tissue has cells that branch? smooth muscle skeletal muscle cardiac muscle both cardiac and smooth muscle both skeletal and cardiac muscle
cardiac muscle
Nucleic acids are sources of cellular energy. structural molecules that do not have a function other than support. all of the above. very small, simple molecules. composed of building blocks called nucleotides.
composed of building blocks called nucleotides
Epidermis is ________________, whereas dermis is ________________. none of the above. composed of largely dense connective tissue; composed of stratified squamous epithelial tissue the outermost layer of the skin; composed of stratified squamous epithelial tissue composed of stratified squamous epithelial tissue; composed of connective tissue, smooth muscle, and nerve cell processes the innermost layer of the skin; under the epidermis
composed of stratified squamous epithelial tissue; composed of connective tissue, smooth muscle, and nerve cell processes
Myelin is released from a neuron and travels to another neuron. is produced in response to bacterial infection. comprises much of the cell membrane of Schwann cells. is a type of neuron. is a form of chromatophilic substance that fills Schwann cells.
comprises much of the cell membrane of Schwann cells
The epidermis is made up mostly of melanocytes. contains no blood vessels. is composed of the reticular and papillary layers. is thicker than the dermis. is composed of loose connective tissue.
contains no blood vessels.
Which of the following is NOT a function of connective tissue? support transport contraction insulation storage
contraction
The nucleus of a cell functions to synthesize proteins. control and coordinate cellular activities. digest lipids. produce ATP. produce secretory vesicle
control and coordinate cellular activities.
Articular cartilage forms bursal fluid. is formed at the epiphyseal plate. covers the ends of bones in synovial joints. produces red blood cells. attaches tendons to bones.
covers the ends of bones in synovial joints.
The peripheral nervous system includes the spinal cord. cranial nerves. blood-brain barrier. brain. cerebellum.
cranial nerves.
The division of the cytoplasm is Correct! cytokinesis. telophase. mitosis. karyokinesis interphase.
cytokinesis.
Sarcoplasm is the contractile thread that extends the length of the muscle fiber. cytoplasm of muscle cells. structural and functional unit of the skeletal muscle cell. protein strand composed of actin or myosin. cell membrane of a muscle fiber.
cytoplasm of muscle cells.
Tendons and ligaments are composed primarily of dense irregular tissue. muscle tissue. dense regular connective tissue. epithelial tissue. reticular connective tissue.
dense regular connective tissue.
Fingerprints left on things we touch are associated with stratum basale. subcutaneous fat. dermal papillae. subcutaneous tissue. epidermal ridges.
dermal papillae
Blood vessels in the ___________ supply epidermal cells with nutrients. epidermis dermis subcutaneous layer all of the above hair root
dermis
The aroma of cookies baking in the kitchen reaches you in the living room. The distribution of this odor throughout the house is an example of filtration. dialysis. osmosis. active transport. diffusion.
diffusion
Jogging during a hot summer can cause increased body temperature. Through negative feedback mechanism, the control center will ________ the dermal blood vessels, and will ________ sweat glands, both will bring the temperature back to normal. constrict; inactivate dilate; activate
dilate; activate
Muscles and glands that are capable of producing a response when stimulated by motor neurons are called neuromodulators. aponeuroses. receptors. effectors. sensory organs.
effectors
Muscles and glands that respond to nerve impulses are called _______. active receptors affectors effectors excited organs synapse
effectors
Neurons that convey impulses from the CNS to muscles or glands are affectors. receptors. efferent. afferent. effectors.
efferent.
What is the membrane that lines the medullary cavity? growth plate endosteum epiphysis medullary cavity Sharpey's fibers
endosteum
Which of the following connective tissue layers is outside all the others? sarcolemma epimysium endomysium paramysium perimysium
epimysium
A basement membrane anchors epithelial to connective tissue. brain to nervous tissue. blood cells to blood plasma. connective to muscle tissue. muscle to nerve tissue.
epithelial to connective tissue.
The basement membrane is found between epithelium and connective tissue. epithelium and intracellular material. epithelium and extracellular material. extracellular material and intracellular material. interstitial fluid and extracellular fluid.
epithelium and connective tissue.
Unlike other joints, a ________________ does not join two bones to each other. syndesmosis cartilaginous joint gomphosis bony joint suture
gomphosis
Unlike an exocrine gland, an endocrine gland secretes to a surface. has no ducts. contains goblet cells. is a secretory organ. sheds cells with its secretions.
has no ducts.
Plasma membrane phospholipids have a hydrophilic head and hydrophobic tails. have tails that face the exterior of the membrane. are arranged in a single layer. have polar (charged) tails. are 95% cholesterol.
have a hydrophilic head and hydrophobic tails.
The proximal and middle phalanges form ________________ joints. saddle condylar (ellipsoid) plane (gliding) hinge pivot
hinge
The "thermostat" or nucleus that monitors blood temperature is located in the midbrain. thalamus. brainstem. hypothalamus. pons.
hypothalamus.
Which of the following occurs when the parasympathetic system is stimulated? increased heart rate decreased motility of the digestive tract increased metabolism increased blood pressure increased motility of the digestive tract
increased motility of the digestive tract
Identify which is NOT an action of the sympathetic nervous system, increases activity of the Digestive System increases heart rate dilation of airways fight-or-flight response has greater influence during physical activity
increases activity of the Digestive System
The moveable end of a muscle is its origin. source. fulcrum. twitch. insertion.
insertion
Of the five cerebral lobes, the one not visible on the surface of the brain is the Temporal Frontal Insula Occipital Parietal
insula
The structures that connect cardiac muscle cells are neuromuscular junctions. desmosomes. herniated discs. neuromuscular discs. intercalated discs.
intercalated discs.
Gray matter of the spinal cord is mostly composed of dead cells. interneurons. cerebrospinal fluid. axons. myelin.
interneurons.
The secretions of endocrine glands are released directly into the nervous tissue. onto the skin surface. into a gland duct. into the lumen of a tube. into the bloodstream.
into the bloodstream.
Some marrow of long bones is termed "red" marrow. The function of red marrow is to store adipose tissue. manufacture blood cells. store bone-forming cells. make vitamin D. manufacture tissue cells for the skin.
manufacture blood cells.
What is the area where yellow marrow is located? medullary cavity endosteum Sharpey's fibers growth plate epiphysis
medullary cavity
The organelle where energy is captured and stored in the chemical bonds of ATP is a Golgi apparatus. ribosome. nucleus. mitochondrion. peroxisome.
mitochondrion.
A thick, sticky secretion produced by goblet cells is called synovial fluid. mucus. plasma. saliva. serous fluid.
mucus.
Stratified epithelium consists of None of these choices is correct. a single layer of cells that changes shape when the tissue is stretched. a multiple layer of cells that appears to change shape when the tissue is stretched. multiple layers of cells. a single layer of cells.
multiple layers of cells.
A complete atom is electrically neutral because the number of electrons is greater than the number of protons and neutrons combined. negatively charged electrons and neutral neutrons are equal. positively charged protons and neutral neutrons are equal. negative electrons and positive protons are equal. none of the above
negative electrons and positive protons are equal.
Endoplasmic reticulum is best described as a liquid. network of interconnected membranes. cellular inclusion. component of the cytoskeleton. nuclear pore.
network of interconnected membranes.
Gaps or interruptions in the myelin sheath are called internodes. neurofilaments. tight junctions. gap junctions. nodes of Ranvier.
nodes of Ranvier.
The activities of an anatomist consist of ______, whereas those of a physiologist consist of _____. studying chemical molecules; observing forms of the body parts sketching; dissecting observing body parts; studying functions of body parts none of the above conducting experiments; making microscopic examinations
observing body parts; studying functions of body parts
In the process of diffusion, net movement of substances is always from a region of higher concentration to a region of lower concentration. None of these choices is correct. inside the cell to a region outside the cell. of lower concentration to a region of higher concentration. outside the cell to a region inside the cell.
of higher concentration to a region of lower concentration.
A neuron may have one dendrite and many axons. one axon and many dendrites. no axons. no dendrites. more than one cell body.
one axon and many dendrites.
The movement of water through a selectively permeable membrane is called facilitated diffusion. endocytosis. active transport. osmosis. diffusion.
osmosis
When ____________ become enclosed in lacunae, they become cells called _____________. osteocytes; osteoclasts osteoblasts; osteoclasts osteogenic cells; osteoblasts osteoblasts; osteocytes osteocytes; osteoblasts
osteoblasts; osteocytes
The function of the Golgi apparatus is energy production. packaging and distribution of proteins and lipids. production of microtubules. excretion of excess salt. DNA replication.
packaging and distribution of proteins and lipids.
A bone is covered externally with a sheath called ______________, whereas the internal surface is lined with _____________. diaphysis; epiphysis periosteum; endosteum endosteum; periosteum compact bone; spongy bone epiphysis; diaphysis
periosteum; endosteum
The predominant lipid in the cell membrane is a prostaglandin. triglyceride. glycolipid. phospholipid. cholesterol.
phospholipid.
The joint between the head of the radius and the proximal end of the ulna is a _____ joint. saddle ball and socket pivot gliding hinge
pivot
The function of a bursa is to provide support for a weak joint. produce fluid. provide a fluid-filled cushion. increase the articulating surface at a joint. bind ligaments to bones.
provide a fluid-filled cushion.
Ethnic differences in skin color are primarily caused by differences in number of melanocytes. UV radiation exposure. number of keratinocytes. quantity of hemoglobin carried in the blood. C quantity of melanin produced.
quantity of melanin produced
The outer membrane around the muscle cell or fiber is called the ____, while the tunnel-like infoldings of the outer membrane form part of the triad called the ____. sarcolemma; transverse tubules sarcoplasm; transverse tubules transverse tubule; sarcoplasmic reticulum sarcolemma; terminal cisternae transverse tubule; terminal cisternae
sarcolemma; transverse tubules
Dendrites on unipolar neurons are part of sensory neurons. interneurons. efferent neurons. motor neurons. affective neurons.
sensory neurons
A neuron that conducts pain sensations to the central nervous system would be classified as a(n) association neuron. interneuron. efferent neuron. sensory or afferent neuron. motor neuron.
sensory or afferent neuron.
The type of membrane that protects internal organs from friction is a ________ membrane. mucous synovial dry serous partial
serous
Which of the following is correctly matched? long bone - vertebra irregular bone - femur short bone - carpal bone short bone - humerus flat bone - phalanges of the toes
short bone - carpal bone
The bones of the wrists and ankles are classified as irregular bones. flat bones. dextrous bones. long bones. short bones.
short bones
"Cutaneous membrane" refers to skin. bones. mucus. cartilage. blood.
skin
The human integumentary system includes skin, hooves, and horns. bones and muscles. just the skin. skin, nails, hair follicles, and glands. the epidermis, dermis, and subcutaneous layer only.
skin, nails, hair follicles, and glands.
In a cell, lipids are synthesized in the rough ER. smooth ER. Golgi apparatus. stomach. liver.
smooth ER.
Involuntary muscles are smooth and skeletal. cardiac and skeletal. smooth, skeletal, and cardiac. spiral and smooth. smooth and cardiac.
smooth and cardiac.
The central nervous system includes the sensory receptors. cranial nerves. spinal nerves. ganglia. spinal cord.
spinal cord.
Positive feedback mechanisms usually produce negative results. a feeling of euphoria. stimulatory conditions stable conditions. subtle changes.
stimulatory conditions
Which of the following represents the correct order of the layers of the epidermis from the deepest to the most superficial? stratum lucidum, stratum granulosum, stratum corneum, stratum basale, and stratum spinosum stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum stratum basale, stratum granulosum, stratum lucidum, stratum spinosum, and stratum corneum stratum spinosum, stratum basale, stratum lucidum, stratum corneum, and stratum granulosum
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum
The fastest rate of mitosis happens in the stratum corneum. stratum spinosum. stratum basale. stratum granulosum. stratum lucidum.
stratum basale.
This layer of the epidermis consists of 20 to 30 layers of dead cells. stratum spinosum stratum corneum stratum lucidum stratum granulosum stratum basale
stratum corneum
A sarcomere is the structural and functional unit of the skeletal muscle cell. cell membrane of a muscle fiber. contractile thread that extends the length of the muscle fiber. cytoplasm of muscle cells. protein strand composed of actin or myosin.
structural and functional unit of the skeletal muscle cell.
Articular cartilage receives nutrients from chondrocytes. blood vessels in underlying spongy bone. a direct blood supply. surrounding synovial fluid. fatty pads in the joint
surrounding synovial fluid.
The joint that separates two vertebrae is a(n) symphysis that is synarthrotic. synovial that is diarthrotic synovial that is synarthrotic symphysis that is diarthrotic symphysis that is amphiarthrotic.
symphysis that is amphiarthrotic.
The space between neurons is a gap junction. synapse. neurotransmitter. bleb. dendrite.
synapse
A muscle that assists a prime mover is a(n) none of the above. lever. antagonist. synergist. agonist.
synergist
Most of the joints in the appendicular skeleton are _____ joints. fibrous cartilaginous immovable inarticulate synovial
synovial
The type of membrane that lines freely movable joints is a _____ membrane. visceral serous synovial mucous pleural
synovial
The lateral fissure separates the _____ from the rest of the cerebrum. parietal lobe frontal lobe occipital lobe cerebellum temporal lobe
temporal lobe
Homeostasis is the -ability to keep body weight within normal limits. -ability of the blood to circulate nutrients. -maintenance of a constant external temperature inside a room. -tendency of the body to maintain a stable environment. -ingestion of enough food to satisfy hunger.
tendency of the body to maintain a stable environment.
The parietal peritoneum is the membrane that lines the pericardial sac. the serous membrane that covers the lungs. a double-layered serous membrane that anchors some of the abdominal organs to the body wall. the serous membrane that lines the abdominal and pelvic cavities. space located between the visceral and parietal pleura.
the serous membrane that lines the abdominal and pelvic cavities.
Anatomy is the study of living organisms. the study of homeostasis. the study of function. a branch of physiology. the study of structure.
the study of structure.
As cells are pushed from the deeper portion of the epidermis toward the surface, they die. they become dermal cells. they can become cancerous. their supply of nutrients improves. they divide continually.
they die
The most rapid nerve impulses are conducted on fibers that are thick and unmyelinated. thin and myelinated. of medium thickness with spots of myelin. thick and myelinated. thin and unmyelinated.
thick and myelinated.
An example of a long bone would be the tibia. a carpal bone. the sternum. a rib. the clavicle.
tibia
Mitosis forms two daughter cells with twice the amount of DNA as the mother cell. two daughter cells with the same amount of DNA as the mother cell. two daughter cells with half the DNA of the mother cell. one daughter cell and another incomplete cell. daughter cells called gametes.
two daughter cells with the same amount of DNA as the mother cell.
Identify the structure that is the midpoint in the four abdominal quadrants. ribs / floating ribs umbilicus / navel xiphoid process / sternum iliac crest / pelvic bone pubic bone
umbilicus / navel
The membrane on the surface of a lung is called the parietal pericardium. visceral pleura. epidermis. parietal pleura. visceral pericardium.
visceral pleura
Which of the following is the most abundant inorganic substance in cells? Bone Protein Lipid Water Carbohydrate
water
Masses of myelinated nerve fibers appear brown. wet. gray. transparent. white.
white
A myelinated nerve fiber is ______, whereas an unmyelinated nerve fiber is ______. white, and composing the gray matter of the brain and spinal cord; gray, and composing the white matter of the brain and spinal cord none of the above white, and composing the gray matter of the brain and spinal cord; red, and composing the white matter of the brain and spinal cord gray, and composing the gray matter of the brain and spinal cord; white, and composing the white matter of the brain and spinal cord white, and composing the white matter of the brain and spinal cord; gray, and composing the gray matter of the brain and spinal cord
white, and composing the white matter of the brain and spinal cord; gray, and composing the gray matter of the brain and spinal cord