Human A&P
Structures that function in intercellular communication include_________.
Gap junctions
Which durable protein is found in the nails, hair, and epidermis?
keratin
The type of muscle found in the walls of blood vessels is_________ muscle.
smooth
Which layer of the epidermis is found in only a few areas of the body?
stratum lucidum
In which layer of the epidermis are lamellar bodies formed inside keratinocytes?
stratum spinosum
Which of the following is not a characteristic of homeostatic variables?
they always remain at a fixed value
Epithelial tissue is characterized by
tightly packed cells
The shoulder is_________ to the elbow.
proximal
Which epithelial tissue can be described as "all cells attached to the basement membrane but not all cells reach free surfaces"?
pseudostratified
What will develop when the skin is subjected to excess friction or pressure?
callus
What happens when the arrector pili muscles contract?
"Goose bumps" form on the skin.
If you accidentally cut your arm and see adipose tissue, which layer(s) was/were cut?
All of the choices are correct.
Which of the following is consistent with homeostasis?
As body temperature rises, sweating occurs to cool the body.
A tissue that has a fluid matrix is_________.
Blood
Contraction of smooth muscle in the walls of the dermal blood vessels will cause which of the following?
Body heat is conserved
Contraction of smooth muscle in the walls of the dermal blood vessels will cause which of the following?
Conservation of body heat
The bluish tinge of skin due to a reduction of oxygen in the blood is called_________.
Cyanosis
The study of the structural features and functions of the cell is_________.
Cytology
Which of the following structures is likely to consist of dense irregular collagenous connective tissue?
Dermis of the skin
A cell that forms fibrous connective tissue would be called a_________.
Fibroblast
An expanded knob at the base of the hair root is the_________.
Hair bulb
Which cells of the epidermis are part of the immune system?
Langerhans cells
The extracellular material of tissues is called_________.
Matrix
The central axis of the hair is the_________.
Medulla
The vesicles that contain melanin are_________.
Melanosomes
A thin layer of tissue that covers an organ or lines a cavity is a_________.
Membrane
A thick, sticky secretion produced by goblet cells is called_________.
Mucus
The skin that covers the lateral and proximal edges of the nail is the_________.
Nail fold
Collagen, elastin, and reticular fibers in connective tissues are all considered_________.
Proteins
The study of the body's organization by areas is_________.
Regional anatomy
The type of membrane that protects internal organs from friction is a_________ membrane
Serous
Which vitamin begins its synthesis in the skin when the skin is exposed to ultraviolet light?
Vitamin D
The mesentery is
a fused double layer of the parietal peritoneum that attaches parts of the intestine to the interior abdominal wall
An organelle is
a small structure within a cell
The cavity of the body immediately inferior to the diaphragm is the_________ cavity.
abdominal
Which type of cell contains large amounts of lipids?
adipocyte
Eccrine sweat glands do which of the following?
aid in cooling the body
Which type of muscle is found in the wall of the heart?
cardiac muscle
Which type of cell forms cartilage?
chondroblast
The three types of protein fibers found in connective tissue are
collagen, elastin, and reticular fibers
The three types of protein fibers found in connective tissue are
collagen, elastin, and reticular fibers.
Which of the following categories of epithelium is based on cell shape?
columnar
Which type of tissue possesses an abundant extracellular matrix?
connective tissue
Connective tissue in tendons is
dense regular collagenous tissue
Friction ridges of the hands and feet are produced by projections into the epidermis called_________.
dermal papillae
Which of the following structures is likely to consist of dense irregular collagenous connective tissue?
dermis of skin
What is a disc-shaped structure with especially adhesive glycoproteins around each cell that bind cells to one another?
desmosomes
Which type of connective tissue is found in the external ears?
elastic cartilage
Which type of tissue forms linings or coverings?
epithelial tissue
The four primary tissue types are
epithelial, connective, muscular, nervous
Which of the following will help cool the body?
evaporation of sweat from the skin's surface
Which type of connective tissue is found between the vertebrae?
fibrocartilage
Which type of burn involves damage to the epidermis, dermis, and subcutaneous tissue?
full thickness
Adipose tissue
functions as an insulator and a site of energy storage
Adipose tissue
functions as an insulator and a site of energy storage.
What is a small protein channel that allows the passage of ions and small molecules between cells?
gap junction
Structures that function in intercellular communication include
gap junctions
A tissue is a
group of cells with similar structure and function
Unlike an exocrine gland, an endocrine gland
has no ducts
What attaches epithelial cells to the basement membrane?
hemidesmosomes
The secretions of endocrine glands are released directly
into the bloodstream
Thick skin
is found in areas subject to pressure or friction such as palms.
How does intact skin provide protection?
it forms a physical barrier against the entry of microbes
As skin cells move toward the surface of the body, they produce a protein that reduces water loss. This process is called_________.
keratinization
The anatomical term that means "away from the midline of the body" is_________.
lateral
The thumb is_________ to the fifth digit (little finger).
lateral
Which of the following occurs when the permeability of blood vessels increases during inflammation?
migration of white blood cells to the site of injury
Which type of tissue is contractile?
muscle tissue
Macrophages are cells specialized for_________.
phagocytosis
Which of the following is NOT a type of burn?
primary burn
Which of the following functions is associated with the skin?
protection against UV radiation of the sun
The study of the body's organization by areas is_________.
regional anatomy
In a negative feedback mechanism, the response of the effector
reverses the original stimulus.
Which of the following is a function of epithelial tissue?
secretion and absorption of molecules
The type of membrane that protects internal organs from friction is a_________ membrane.
serous
The visceral pleura is
serous membrane that covers lungs
The various types of epithelium are classified by
shape of cells and number of cell layers
Epithelium that is primarily secretory in function would most likely be
simple cuboidal
If one of the functions of the capillaries is to supply body cells with oxygen and nutrients, you would expect the capillary walls to consist of
simple squamous epithelium
Which type of epithelial tissue is found in the mouth?
stratified squamous epithelium
The nail is composed of cells of the_________.
stratum basal
The epidermal layer that is present in the nail bed and the nail matrix is the_________.
stratum basale
Which of the following represents the correct order of the layers of the epidermis from the deepest to the most superficial?
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum
In which layer of the epidermis are granules of keratohyalin formed?
stratum granulosum
A muscle that is not consciously controlled and has a banded appearance would be described as
striated and involuntary
Anatomy is the study of
structure
The_________ is a major site of lipid storage in the body.
subcutaneous layer
Which subdivision of anatomy involves the study of organs that function together?
systemic
Which type of epithelial tissue is found in the urinary bladder?
transitional epithelium