Test 1

Select the correct statement regarding the cells of connective tissue?

"Blast" cells are undifferentiated; actively dividing cells

Average body temperature is ______ degrees centigrade.

37

What is the ration of fatty acids to glycerol in neutral fats?

3:1

Match the following cavities __heart __stomach __Brain __Lungs __Uterus

4 1 4 3 2

Atom X has 17 protons. How many electrons are in its valence shell?

7

The composition of the secretion of the eccrine glands is ____.

99% water, sodium chloride, trace amounts of waste, and vitamin C

Once solid material is phagocytize and taken into a vacuole, which of the following statements best describes what happens?

A lysosomes combines with the vacuole and digests the enclosed solid material.

Select the most correct statement regarding nucleic acids.

B) Dna is long, double stranded molecule made up of A, T, G, and C bases.

Which of the following is not found in the matrix of cartilage but is in bone?

Blood vessels

Which of the following is true regarding the generation of a membrane potential?

Both potassium and sodium ions can "leak" through the cell membrane due is diffusion.

The single most abundant protein in the body is _______.

Collagen

In liquid XYZ, you notice that light is scattered as it passes thought. There is no precipitant in the bottom of the beaker, though it has been sitting for several days. What type of liquid is this?

Colloid

Which of the following is true about the mode of secretion of exocrine glands?

Contain simple or stratified epithelia and basement membrane

Mitochondria _____.

Contain some of the DNA and RNA code necessary for their own function.

A needle would pierce the epidermal layers of the foramen in what order>

Corneum, granulosum, spinosum, basale

What is the specific name for the hip region?

Coxal

Which of following statements is most correct regarding the intracellular chemical signals known as "second messengers"?

Cyclic AMP and calcium may be second messengers.

Which of the following is true about epithelia?

Endothelium provides a slick surface lining all hallow cardiovascular organs

Which of the following statements best describes what fingernail actually are?

Fingernails are a modification of the epidermis

Water lose through the epidermis could cause a serious threat to health and well-being. Which of the following protects us against excessive water loss through the skin>

Laminated granules of the cells of the stratum granules, a glycolipid that is secreted into extracellular space

Which of the following cutaneous receptors is specialized for the reception of touch or light pressure?

Meissner's corpuscle

Which of the following is true about the mode of secretion of exocrine glands?

Merocrine glands are not altered by the secretory process

Which of the following is true regarding the concentration of solutions?

Molarity is one mole of south per 1000 ml of solution.

Which of the following statements indicates the way in which the body's natural defenses protect the skin from the effects of UV damage?

Prolonged expose to the sun induces melanin dispersion, which in the turn acts as a natural sunscreen.

____ epithelium appears to have two or three layers of cells, but all the cells are contact with the basement membrane.

Pseudostratified columnar

Acne is a border associated with ____.

Sebaceous glands

Inability to absorb digested nutrients and secrete mucus might indicate a disorder in which tissue?

Simple columnar

Select the correct statement regarding epithelia.

Stratified epithelia are present where protection form abrasion is important

______ cavities are spaces within joints.

Synovial

What is a dipole?

a polar molecule

Homeostasis is the condition in which the body maintains ______.

a relatively stable internal environment, within limits.

A solution that has a pH of 2 could be best as described as being _____.

acidic

The endomembrane system is _______.

an interactive system of organelles whose membranes are physically or functionally connected

Peroxisomes ______.

are able to detoxify substances by enzymatic action

Which muscles attached tot eh hair follicles cause good bumps?

arreactor pili

The anatomical position is used _____.

as a standard reference point for directional terms regardless of the actual position of the body.

Which of the following is an example of suspension?

blood

The dorsal body cavity is the site of which of the following?

brain

The sebaceous glands are simple alveolar glands that secrete a substance known as sebum. The secretion of sebum is stimulated _______.

by hormones, especially androgens

Burns are devastating and debilitating because of loos of fluids and electrolytes form the body. How do physicians estimate the extend of burn damage associated with such dangerous fluid loss?

by using the "rule of nines"

the ____ gland is modified sudoriferous glans that secretes wax

ceruminous

Cell types likely to be seen in areolar connective tissue include all except _____?

chondrocytes

Mammary glands exhibit a glandular type called _____.

compound alveolar

An epithelial membrane _____.

contains simple or stratified epithelia and basement membrane

Two good examples of colloid would be Jell-O and _____.

cytosol

The papillary layer of the dermis is connect tissue heavily invested with blood vessels. The superficial surface has structures called:

dermal papillae

An oblique cut is one that is cut ____.

diagonally superior to inferior

Which body cavity protects the nervous system?

dorsal

Messenchymal cells are most commonly found in _______ connective tissue.

embryonic

A good example of a position feedback mechanism would be _______.

enhancement of labor contractions thought the exertion of oxytocin

What is a vertical section through the body, dividing it into anterior and posterior regions called?

frontal

Which cells are commonly found wedged between simple columnar epithelial cells?

goblet cells

When examining an organ, such as the heart, by direction would represent ____ anatomy.

gross

What are the three main components of connective tissues?

ground substance, fibers, and cells

Epithelial tissue ____.

has a basement membrane.

The first step in tissue repair involves _____.

inflammation

Which of the following organs or structures would be found int he left iliac region?

intestines

Salts are always ____.

ionic compounds

Which of the following statements is the most correct regarding homeostatic imbalance?

it is considered the cause of most diseases.

In which abdominopelvic cavity is the stomach located?

left upper

Pseudo stratified ciliated columnar epithelium ____.

lines the respiratory tract

The parietal pleura would represent a serous membrane _______.

lining the thoracic cavity

Male pattern baldness has a genetic switch that turns on in response to ______.

male hormones

Which of the following would not be a constituent of plasma membrane?

messenger RNA

Which structures are fingerlike projections that greatly increase the absorbing surface of the cells?

microvilli

What are glycosaminoglycans?

negatively charged polysaccharides

A structure that is composed of two or more tissues would be a(n) _____.

organ

What tissue has lacunae, calcium salts, and blood vessels?

osseous tissue

The heart lies in the _____ cavity.

pericardial

Cell junctions that promote the coordinated activity of cells by physically binding them together into a cell community include all of the following except _____.

peroxisomes

An epidermal dendritic cell is specialized ______.

phagocytic cell

Which process is the main mechanism for cells in ingest macromolecules?

phagocytosis

In which cavities are lungs located?

pleural, ventral, and thoracic

What is a chain of 25 amino acids called?

polypeptide

Keratinocytes are important epidermal cells because they _______.

produce a fibrous protein that gives the skin much of its protective proper

Which of the following does not see as a signal for cell division?

repressor genes

Although the integument is a covering, it is by means simple, and some of its functions include

resident macrophage- like cells whose function is to ingest antigenic invaders and present them to the immune system

What is a vertical section through the body, dividing it into left and right, called?

sagittal

One of the functional characteristics of life is irritability. This refers to _____.

sensing changes in the environment and then reacting or responding to them

The epidermis conduits of five layers of cells, each layer with a distinct role in play in the health, well being, and functioning of the skin. Which of the following layers is repressible for cell division and replacement?

stratum basale

A red blood cells placed in pure water would _____.

swell and burst

The reason the hypodermis acts as a shock absorber is that _____.

the major part of its makeup is adipose, which serves as an effective shock absorber

Extracellular matrix is _____.

the most abundant extracellular material

A chemical reaction in which bonds are broken is usually associated with _____.

the release of energy

The dermis has two major layers, which of the following constitutes 80% of the dermis and is responsible for the tension lines in the skin?

the reticular layer

In certain kinds of muscle cell,s calcium ions are stored in _____.

the smooth ER

Which of these is not part of the dorsal cavity?

thoracic cavity

Which of the following is not considered a factor in influencing a reaction?

time

Organized groups of cells (plus their intercellular substances) that have a common purpose from a(n) ______.

tissue

Histology would be best defined as a study of ______.

tissues

Which statement best describes connective tissue?

usually contains a large amount of matrix

The single most abundant chemical substance of the body, accounting for 60% to 80% of body weight, is _____.

water