1) substances that have been isolated from the blood and have been shown to induce
sleep have also been linked to the ________ system.
a) urinary
b) respiratory
c) reproductive
d) integumentary
e) immune
2) ________ is the immunoglobulin class that comprises 75% of antibodies in adult
blood.
a) iga
b) igd
c) ige
d) igg
e) igm
3) in addition to temperature, cold receptors respond to
a) menthol.
b) capsaicin.
c) alcohol.
d) water.
4) identify the false statement.
a) adipose tissue is controlled by autonomic efferents.
b) all reflexes require input from the brain.
c) some reflexes are genetically determined.
d) muscle spindles are stretch receptors.
e) proprioceptors detect limb position and movement.
5) microvilli are found
a) mostly in muscle cells.
b) on the inside of cell membranes.
c) in large numbers on cells that secrete hormones.
d) in cells that are actively engaged in absorption.
e) only on cells lining the reproductive tract.
6) bile is
a) secreted by hepatocytes only.
b) manufactured by the gallbladder only.
c) released into the stomach only.
d) secreted by hepatocytes and manufactured by the gallbladder.
e) secreted by hepatocytes, manufactured by the gallbladder, and released into the
stomach.
7) match the following terms to the correct answer:
a. tricuspid valve
b. bicuspid valve
c. aortic valve
d. pulmonary valve
has three cuplike leaflets and has the aorta on one side
8) sperm cannot fertilize an egg until they
a) undergo capacitation.
b) undergo activation.
c) undergo decapitation.
d) lose their acrosome.
e) are in the vagina for 3 days.
9) damage to cells of the zona fasciculata of the adrenal cortex would result in
a) the disappearance of axillary and pubic hair.
b) increased volume of urine formation.
c) decreased levels of sodium ion in the blood.
d) decreased ability to convert lipids to glucose.
e) increased water retention.
10) synergism occurs when
a) one hormone triggers the secretion of a second hormone.
b) one hormone inhibits the release of a second hormone.
c) hormones working together produce a larger effect than predicted.
d) hormones working together produce a smaller effect than predicted.
e) a hormone can exert its full effects only in the presence of another hormone.
11) in general, the nervous system is composed of which two types of cells?
1> motor
2> neurons
3> sensory
4> glial
5> associative
a) 1 and 2
b) 1 and 3
c) 2 and 4
d) 3 and 4
e) 3 and 5
12) the porphyrin ring of heme contains an atom of
a) magnesium.
b) calcium.
c) iron.
d) sodium.
e) copper.
13) why do objects viewed underwater with a mask appear closer and larger than they
really are?
a) water is denser than the lens of the eye.
b) light moves more slowly through the water.
c) the mask provides additional refraction of light before it reaches the retina.
d) the cornea does not function in water, and the light is not refracted as much.
e) light traveling through the water scatters more than it does when moving through the
air.
14) draw graphs showing the effects of hypokalemia and hyperkalemia on action
potential production. don’t worry about exact millivolt values – the point is to show that
you understand the effects of these conditions relative to normal.
15) many drugs used to treat migraine headaches contain caffeine. what mechanism
does caffeine have that can help with migraine headaches?
16) a sensory receptor is a ________ that converts a stimulus into electrical graded
potentials.
17) the following statement contains three parts that are either true or false. you must
address all three parts of the statement explaining either why it is true or why it is false.
neurohormones from the anterior pituitary are called “trophic” because their release is
stimulated by a releasing hormone from the hypothalamus.
18) defects in ________ structure or function lead to the disease cystic fibrosis. what
ion does this channel transport?
19) explain the purpose of having both the reversible glut transporters as well as the sglt
transporters in the body.
20) the dissolution of fibrin by plasmin is known as ________.
21) why is the scrotum, the sac that contains the testes, located outside of the body?
22) the signal molecule ________ elicits the stronger response from alpha receptors.
23) what are the functions of pleural fluid?