Quiz
14 October 2009
Action Potential Conduction Velocity Lab
Synapses
Somatic and Autonomic Nervous System
Answer key on last slide
1. Which of the following is directly
responsible for the release of NT from
the presynaptic terminal?
a. Influx of calcium into the terminal
b. Efflux of calcium from the terminal into ECF
c. Hyperpolarization
d. Influx of sodium
e. Influx of potassium
2. Two different synapses active
simultaneously can _____ summate.
a.
b.
c.
d.
Spatially
Temporally
Tetanically
Presynaptically
3. How do MAO inhibitor drugs work?
a. Increase the release of norepinephrine and
dopamine into cleft
b. Speed up degradation of norepinephrine and
dopamine
c. Decrease the release of norepinephrine and
dopamine into cleft
d. Slows degradation of norepinephrine and
dopamine
4. Which are examples of biogenic
amine neurotransmitters?
a.
b.
c.
d.
e.
f.
g.
Dopamine
Norepinephrine
Acetylcholine
Glutamate
GABA
serotonin
Catecholamines
5. Which ganglia can be found in
chains that are connected to each
other close to the spinal cord?
a.
b.
c.
d.
e.
Sympathetic
Parasympathetic
Somatic
Cervical
Dorsal root
6. Which system has ganglia that lie
within or close to the organs they
innervate?
a.
b.
c.
d.
Dorsal Root
Sympathetic
Parasympathetic
Somatic
7. Norepinephrine is released from____.
a.
b.
c.
d.
e.
f.
somatic motoneurons
Parasympathetic preganglionic neurons
Parasympathetic postganglionic neurons
Sympathetic preganglionic neurons
Sympathetic postganglionic neurons
The adrenal medulla into the bloodstream
8. Adrenergic receptors found on effector
organs are stimulated by________.
a.
b.
c.
d.
Parasympathetic neurons
Sympathetic neurons
Somatic neurons
Pathetic neurons
9. Muscarine is an agonist for
a.
b.
c.
d.
e.
Muscarinic acetylcholine receptors
Adrenergic receptors
Nicotinic acetylcholine receptors
Tobacco receptors
AMPA receptors
10. The somatic nervous system
innervates __________.
a.
b.
c.
d.
e.
f.
Cardiac muscle
Glands
Striated muscle
Skeletal muscle
Your brain
Smooth muscle
11. Which is the best approximation
for action potential conduction
velocity in human ulnar nerves?
a.
b.
c.
d.
10 m/s
1 m/s
50 m/s
100 m/s
12. Which drug(s) can be used to
paralyze skeletal muscle?
a.
b.
c.
d.
e.
f.
acetylcholine
glutamate
muscarine
nicotine
curare
atropine
13. Ways by which the effects on the
postsynaptic cell can be enhanced are:
a. Presynaptic facilitation
b. High frequency of action potentials in the
presynaptic terminal
c. Adding an agonist for the receptors on the
postsynaptic cell
d. Blocking the reuptake of NT into the presynaptic
terminal
e. Adding drugs that prevent the breakdown of NTs
in the synaptic cleft.
14. When you simulated the ulnar nerve
transcutaneously, an action potential was
produced and conducted __________.
a.
b.
c.
d.
e.
Only in motor axons
Orthogradely in sensory axons
Retrogradely in sensory axons
Orthogradely in motor axons
Retrogradely in sensory axons
15. Which is true for the muscarinic
acetylcholine receptor:
a.
b.
c.
d.
Is activated by muscarine
Is found at the neuromuscular junction
Is an inotropic receptor
Is found on neuronal cell bodies in the
autonomic ganglia
e. Is found on glands and smooth muscles
16. The NMDA receptor
a.
b.
c.
d.
Is activated by NMDA
Is found at the neuromuscular junction
Is a metabotropic receptor
Is blocked by Ca++ in the pore when the
membrane is within 20 mV of resting potential
e. is ligand- and voltage- gated
f. Is found at synapses that have AMPA receptors.
17. The superior, middle, and
inferior cervical ganglion
a.
b.
c.
d.
Are part of the parasympathetic division
Controls heart function
Participates in the regulation of pupillary diameter
Receives synapses from axons whose cell bodies are in
the thoracic and lumbar segments of the spinal cord
e. Has neuronal cell bodies that have nicotinic
acetylcholine receptors.
18. The vagus nerve
a. Provides sympathetic innervation to the heart
b. Provides sympathetic innervation to the lungs
c. Provides sympathetic innervation to viceral
organs in the thoracic and abdominal cavities
d. Consists of axons preganglionic
parasympathetic neurons
Answers
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•
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•
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1a
2a
3d
4 abfg
5 ad
6c
7 ef
8b
9a
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•
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10 cd
11 c
12 e
13 abcde
14 bcde
15 ae
16 aef
17 bcde
18 d