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1) which one of these muscles helps to open the mouth (depress the mandible)?
a. zygomaticus major
b. digastric
c. sternohyoid
d. depressor anguli oris
e. hyoglossus
2) only autosomal trisomies involving chromosomes 13, 18, and 21 are survivable. why
would this be?
a. these are relatively short chromosomes.
b. these are relatively long chromosomes.
c. these are relatively gene-poor chromosomes.
d. these are redundant chromosomes.
e. these chromosomes have no genes.
3) blood flow to the __________ remains quite stable even when mean arterial pressure
(map) fluctuates from 60 to 140 mm hg.
a. hypothalamus
b. adrenal gland
c. stomach
d. skeletal muscles
e. kidneys
4) which one of the following bone cells would have the greatest number of lysosomes?
a. osteoblasts
b. osteoclasts
c. osteocytes
d. osteogenic cells
e. stem cells
5) which of the following are not considered facial bones?
a. parietal bones
b. maxillae
c. lacrimal bones
d. nasal bones
e. palatine bones
6) what are the only retinal cells that produce action potentials?
a. rods
b. cones
c. ganglion cells
d. bipolar cells
e. horizontal cells
7) what are the most abundant agranulocytes?
a. macrophages
b. eosinophils
c. monocytes
d. lymphocytes
e. neutrophils
8) when the left ventricle contracts, the __________ valve closes and the __________
valve is pushed open.
a. mitral; pulmonary
b. right av; pulmonary
c. right av; aortic
d. mitral; aortic
e. aortic; pulmonary
9) which of the followingis the last step in the sequence of events happening when
cyclic amp acts as a second messenger?
a. g protein activates adenylate cyclase
b. camp activates protein kinases
c. adenylate cyclase produces camp
d. g protein is activated by the binding of a hormone to the receptor
e. enzymes are activated or deactivated by the action of protein kinases
10) the term fallopian tube (uterine tube) is an example of __________.
a. a latin root used in medical terminology
b. the use of prefixes to name an anatomical structure
c. the use of suffixes to name an anatomical structure
d. an eponym
e. an acronym
11) among its other purposes, how is the valsalva maneuver used?
a. to aid in defecation and urination
b. as part of the procedure for giving cpr to a person in respiratory arrest
c. to ventilate the lungs during eupnea
d. to expel more than the usual tidal volume from the lungs
e. to clear carbon monoxide from the body and replace it with oxygen
12) the bundle of nerve roots that occupy the vertebral canal from l2 to s5 is called the
__________.
a. medullary cone
b. cauda equina
c. lumbar enlargement
d. cervical enlargement
e. spinal cord
13) which of the following occurs when blood volume and pressure become too high?
a. adh release is inhibited.
b. adh release is stimulated.
c. the renal tubules reabsorb more water.
d. the renal tubules reabsorb more sodium.
e. the kidneys produce less urine.
14) which of the following functions would most likely be controlled by the
representational hemisphere of the cerebrum?
a. answering this question
b. diagnosing a patient's disease
c. balancing your checkbook
d. giving a speech
e. painting a picture
15) breathing into and out of a paper bag for a long period of time will lead to
__________.
a.metabolic alkalosis
b.metabolic acidosis
c.urinary alkalosis
d.urinary acidosis
e.respiratory acidosis
16) how is the vital capacity calculated?
a. inspiratory reserve volume + expiratory volume
b. inspiratory reserve volume + tidal volume
c. expiratory reserve volume + tidal volume
d. expiratory reserve volume + tidal volume + inspiratory reserve volume
e. respiratory volume + tidal volume
17) in a herniated disc, the ring of fibrocartilage called the __________ ruptures and the
__________ oozes out.
a. nucleus pulposus; anulus fibrosus
b. lamina; nucleus pulposus
c. anulus fibrosus; nucleus pulposus
d. anulus fibrosus; body
e. nucleus pulposus; lamina
18) a reflex in whichthe sensory input and motor output are on opposite sides of the
spinal cord, is called a(n) _________ reflex arc.
a. intersegmental
b. contralateral
c. ipsilateral
d. polysynaptic
e. monosynaptic
19) which of the following structures releases neurotransmitter in a paravertebral
ganglion?
a. preganglionic sympathetic fiber
b. postganglionic sympathetic fiber
c. somatic motor fiber
d. preganglionic parasympathetic fiber
e. postganglionic parasympathetic fiber
