1) a boy who has not passed through puberty sustains an injury to his anterior pituitary
such that fsh is no longer released, but lh is normal. after the individual grows to
maturity, one would expect that he would
a) not develop secondary sex characteristics.
b) be sterile.
c) be impotent.
d) have impaired function of the interstitial cells.
e) produce large amounts of inhibin.
2) a structure that allows the middle ear to communicate with the nasopharynx is the
a) pinna.
b) membranous labyrinth.
c) bony labyrinth.
d) eustachian tube.
e) auditory meatus.
3) transcription of the dna triplet sequence atc yields
a) uag.
b) tag.
c) utc.
d) atc.
4) a heart rate of 125 beats per minute could be correctly termed
a) bradycardia.
b) tachycardia.
c) an arrhythmia.
d) fibrillation.
e) a normal resting heart rate.
5) the carrier protein that transports absorbed iron through the blood is
a) hemoglobin.
b) transferrin.
c) erythropoietin.
d) thrombopoietin.
e) intrinsic factor.
6) which of the following events does not occur when you swallow?
a) respiration is inhibited.
b) the upper esophageal sphincter closes.
c) the glottis and epiglottis close.
d) the lower esophageal sphincter relaxes.
7) what by-product results during the production of nitric oxide?
a) arginine
b) citrulline
c) nitric oxide synthase
d) carbon monoxide
e) carbon dioxide
8) the raas pathway begins with
a) secretion of angiotensin converting enzyme.
b) secretion of the enzyme renin.
c) secretion of angiotensinogen.
d) secretion of aldosterone.
e) secretion of antidiuretic hormone.
9) ________ decreases ovarian follicle sensitivity to fsh.
a) progesterone
b) estrogen
c) gnrh
d) lh
e) anti-mllerian hormone
10) the reactions where fats are broken down into glycerol and fatty acids are called
a) glycerolysis.
b) glycolysis.
c) gluconeogenesis.
d) lipolysis.
e) liposuction.
11) stimuli for the activation of the raas pathway include
a) low blood pressure in arterioles in the nephron only.
b) a decrease in fluid flow through the distal tubule only.
c) high blood pressure in the renal artery only.
d) low blood pressure in arterioles in the nephron and a decrease in fluid flow through
the distal tubule.
e) low blood pressure in arterioles in the nephron, a decrease in fluid flow through the
distal tubule, and high blood pressure in the renal artery.
12) match the type of receptor with the appropriate description.
a. chemoreceptors
b. touch receptors
c. thermoreceptors
d. nociceptors
these receptors respond to stimuli that are harmful or potentially harmful to body tissues
and lead to the perception of pain.
13) when baroreceptors in the carotid and aortic bodies register increased blood
pressure, this results in
a) secretion of adh.
b) inhibition of adh secretion.
c) increased glomerular filtration.
d) decreased urine production.
e) increased thirst.
14) list the muscles of inspiration and expiration.
15) list three ways that neural reflex pathways can be classified. name one of the
reflexes in each category. what additional information may be gained from the name of
the reflex? name a specific reflex and identify its classification in all of the categories
you listed.
16) explain how epinephrine can cause intestinal blood vessels to constrict and cause
skeletal muscle blood vessels to dilate.
17) what are the two possible causes of lower alveolar po2? give examples of each.
18) the reductions in muscle force generation at lengths different from optimal are a
result of a(n) ________.
19) ________ are mediators released from white blood cells that regulate the activity of
b cells and t cells and enhance nonspecific defense.