Download Summer 2003 5B

Systemic Anatomy Exam V
Prepared especially for the Trimester One Class, Summer 2003
Please place the single best answer for each of the following questions unless the question is marked by the
letters, MACA, in which you should mark all correct answers. There will be no questions once the exam begins
as interpretation of the question is a part of the examination.
FORM B
1) The first heart sound is the closure of the ______ valves.
a) semilunar
b) AV
2) Blood flows through the coronary arteries during ventricular _____.
a) systole
b) diastole
3) The right common carotid artery arises directly from the _____.
a) aortic arch
b) brachiocephalic trunk
c) left common carotid artery
d) thyrocervical trunk
4) “Berry” aneurysms which are more common in women are found in the ____ artery of the Circle of Willis.
a) posterior communicating
b) anterior communicating
c) posterior cerebral
d) middle cerebral
e) anterior cerebral
5) The apex of the heart is typically located between the ____ and ___ intercostal spaces.
a) second; third
b) third; fourth
c) fourth; fifth
d) fifth; sixth
e) sixth; seventh
6) The pericardial cavity is located between the ___ and the ___.
a) fibrous pericardium; parietal serous pericardium
b) parietal serous pericardium; visceral serous pericardium
c) visceral serous pericardium; the myocardium
7) During ventricular systole the ___ valves are closed.
a) atrioventricular
b) semilunar
8) Blood is returned to the heart from the lungs via the ______.
a) pulmonary trunk
b) bronchial arteries
c) pulmonary veins
d) aorta
e) superior vena cava
page 1, SA Exam V, Q.# 1-8
9) The tricuspid valve is also known as the ____. (MACA)
a) right AV valve
b) left AV valve
c) mitral valve
d) pulmonary valve
e) aortic valve
10) Chordae tendineae keep the free margins of the AV valves from back folding into the _____.
a) ventricles
b) atria
11) The SA node is located _______.
a) in the wall of the left atrium
b) inferior to the AV node
c) in the wall of the right atrium
d) in the interatrial septum
e) in the interventricular septum
12) The conduction impulse of the heart travels from the AV node to the atrioventricular bundle towards the
___ of the heart.
a) apex
b) base
13) The ventricular chambers fill with blood during ventricular ___.
a) systole
b) diastole
14) Which of the following is NOT a result of sympathetic stimulation?
a) diaphoresis
b) penile erection
c) elevation of blood glucose
d) cutaneous vasoconstriction
e) piloerection
15) The nucleus that gives rise to GVE fibers carried in cranial nerve X is located ____.
a) in the midbrain
b) beneath the floor of the fourth ventricle
c) in the pons
d) at the pontomedullary junction
16) GVE neurons that innervate the urinary bladder are carried in __________.
a) the greater splanchnic nerves
b) ventral rami of the sacral plexus
c) pelvic splanchnic nerves
d) the vagus nerve
e) the iliolumbar nerve
page 2, SA Exam V, Q.# 9-16
17) You go to the eye doctor and they dilate your eyes and you can not read the newspaper for the first 2 hours
after you get home because the words are too blurry and you can not focus your eyes. Why?
a) the drugs cause the pupils to constrict
b) the drugs caused a paralysis of the muscles of accommodation
c) the drugs cause the pupil to dilate
d) the drugs cause the canals of Schlemm to close
e) the drugs cause a covering to develop over the cornea
18) What stops the effects of ACH on the post synaptic receptors?
a) enzymatic degradation
b) the neurotransmitter has a specific half life and after a few milliseconds it automatically disintegrates
c) active transport of ACH back into the presynaptic cell
d) intracellular enzymes cleave of the water portion of the moiety
e) none of the above
19) Norepinephrine is derived from ______.
a) epinephrine
b) tyrosine
c) catecholamine
d) ACH
20) Monoamine oxidase inactivates norepinephrine ____ the cell.
a) outside
b) inside
21) Muscarinic receptors are found on which of the following tissues? (MACA)
a) adrenal medullary cells
b) smooth muscle cells of the gut
c) eccrine sweat glands
d) apocrine sweat glands
e) glandular epithelial cells in the parotid salivary gland
22) Where do preganglionic parasympathetic fibers innervating sweat glands in the skin come from?
a) dorsal motor nucleus of the vagus n.
b) T1,2 spinal segments
c) the superior cervical ganglion
d) S2,3,4 spinal segments
e) there are no parasympathetic fibers that innervate this structure
23) Where do preganglionic sympathetic fibers that innervate the heart come from?
a) dorsal motor nucleus of the vagus nerve
b) T1,2 spinal segments
c) the adrenal medulla
d) the superior cervical ganglion
e) T3,4 spinal segments
24) Where do postganglionic parasympathetic fibers that innervate the parotid salivary gland come from?
a) the otic ganglion
b) the ciliary ganglion
c) the submandibular ganglion
d) the pterygopalatine ganglion
e) the superior cervical ganglion
page 3, SA Exam V, Q.# 17-24
25) Loss of GVE nerve supply to smooth muscle results in _______.
a) denervation atrophy of the muscle
b) loss of central control over the muscle
c) death of the muscle cell
d) the same end result as loss of innervation to a skeletal muscle cell
e) no change in the function of the smooth muscle cell
26) Most GVE preganglionic information is carried in _____ neurons.
a) type A
b) type B
c) type C
27) Most of the sympathetic information supplying structures of the head come from spinal segments ____?
a) T1,2
b) T3,4
c) T5,6,7
d) T6,7,8
e) none of the above
28) Myelinated GVE axons leave the spinal cord in the _____.
a) dorsal rootlets
b) ventral rootlets
c) none of the above
29) The adrenal glands are located ___ to the kidneys.
a) superior
b) inferior
30) Which cranial nerves carry GVE fibers? (MACA)
a) CN X
b) CN III
c) CN V
d) CN VII
e) CN IX
31) GVE preganglionic fibers from cell bodies located in the ______ are carried in the oculomotor nerve (CN
III) and synapse in the ____ ganglion.
a) inferior salivatory, submandibular
b) superior salivatory, otic
c) dorsal motor nucleus, terminal
d) Edinger-Westphal, ciliary
e) none of the above
32) Stimulation of muscarinic receptors located in the heart would have what effect?
a) positive chronotropic effect
b) negative chronotropic effect
c) no effect
33) A drug that blocks the beta-receptors located in the lungs would have what effect?
a) increase the diameter of the bronchioles
b) prevent dilation of the bronchioles
c) have no effect
page 4, SA Exam V, Q.# 25-33
34) Which of the following neurons would be classified as cholinergic? (MACA)
a) preganglionic parasympathetic fibers
b) postganglionic parasympathetic fibers
c) preganglionic sympathetic fibers
d) postganglionic sympathetic fibers innervating the heart
e) postganglionic sympathetic fibers innervating the eccrine sweat glands
35) A muscarinic receptor-blocking agent, such as atropine, would have what effect upon the pupil of the eye .
a) mydriasis
b) miosis
c) no effect
36) Which of the following innervate the adrenal medulla?
a) preganglionic parasympathetic fibers
b) postganglionic parasympathetic fibers
c) preganglionic sympathetic fibers
d) postganglionic sympathetic fibers
e) two of the above
37) Stimulation of muscarinic receptors located in the small intestine would have which of the following
effects?
a) increase peristalsis
b) decrease peristalsis
c) no effect
38) Which cranial nerve carries motor information to the intrinsic and extrinsic muscles of the tongue?
a) CN V
b) CN VII
c) CN IX
d) CN X
e) CN XII
39) What cranial nerve innervates the levator palpebrae superioris m.?
a) CN V
b) CN VII
c) CN IX
d) CN X
e) CN XII
40) Where are the GVE preganglionic neuron cell bodies of the parasympathetic nervous system located?
(MACA if you think it is applicable)
a) spinal segments T1 to L2
b) sacral segments S2,3,4
c) brain stem
d) cervical segments C1 to C7
e) cerebrum
page 5, SA Exam V, Q.# 34-40
41) Sympathetic preganglionic neuron fibers exit the spinal nerve via the ____ to enter into the paravertebral
chain of ganglia.
a) gray rami communicantes
b) white rami communicantes
c) splanchnic nerves
d) postganglionic neuron
42) Which spinal nerves have white rami communicantes connected to them?
a) T1 to L2
b) C1 to C7
c) L3 to S1
d) S2 to S4
e) all of the above do
43) What neurotransmitter is released from preganglionic sympathetic neurons?
a) epinephrine
b) norepinephrine
c) ACH
d) two of the above
44) Which tissues/neurons release Epinephrine?
a) preganglionic sympathetic neurons
b) postganglionic sympathetic neurons
c) postganglionic parasympathetic neurons
d) the adrenal medulla
e) two of the above
45) Which of the following is innervated by GVE neurons? (MACA)
a) multiunit smooth muscle cell
b) skeletal muscle cell
c) glandular epithelium
d) single unit smooth muscle cell
e) cardiac muscle cell
46) In which of the following locations would I find a preganglionic neuron cell body? (MACA)
a) lateral horn of the spinal cord
b) brain stem
c) adrenal medulla
d) sacral segments S2,3,4
e) prevertebral ganglia
47) Gray rami communicantes are found associated with ____ .
a) T1 through L2 spinal nerves
b) C1 through T12 spinal nerves
c) all spinal nerves
d) only those spinal nerves below the diaphragm
e) sacral segments S2,3,4
page 6, SA Exam V, Q.# 40-47
48) Which cranial nerve innervates the masseter muscle?
a) CN II
b) CN III
c) CN IV
d) CN V
e) CN VI
49) Cutaneous sensation, such as pain, from the anterior two thirds of the tongue is carried in which cranial
nerve?
a) CN V
b) CN VII
c) CN IX
d) CN X
e) CN XII
50) Which cranial nerves transmit taste (SVA) information? (MACA)
a) CN V
b) CN VII
c) CN IX
d) CN X
e) CN XII
page 7, SA Exam V, Q.# 48-50
The end of exam V. Grades will be emailed to you by the close of the day today.