Anatomy & Physiology Exam 4

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 Anatomy & Physiology Exam 4
Practice quiz for the nervous system exam. Anatomy & Physiology, UTSA, KIN 3313

  
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1.  The peripheral nervous system consists of the brain and spinal cord.
A.
B.
2.  Afferent fibers are fibers that transmit impulses from the receptors to the CNS.
A.
B.
3.  Skeletal muscles are innervated by neurons in the motor division.
A.
B.
4.  Glands are innervated by the somatic motor system.
A.
B.
5.  Which structure in the neuron generates the action potential?
A.
B.
C.
D.
E.
6.  In the peripheral nervous system, the myelin sheath is formed by the ologodendrocytes.
A.
B.
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7.  Post ganglionic fibers of the autonomic system are non myelinated.
A.
B.
8.  Typically, what is the charge of a neuron at rest?
A.
B.
C.
D.
E.
9.  Threshold of a neuron is reached at how many millivolts?
A.
B.
C.
D.
10.  Which is true about the sodium potassium pump?
A.
B.
C.
D.
E.
11.  What happens during an action potential?
A.
B.
C.
D.
E.
12.  What happens during repolarization? (check all that apply)
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B.
C.
D.
13.  ______ and ______ causes depolarization of the post synaptic membrane. (neurotransmitter and ion) (check all that apply)
A.
B.
C.
D.
14.  The synapse of a neuron is where synaptic vesicles are stored.
A.
B.
15.  The dendrites are the receptive regions of the neuron.
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B.
16.  Temporal summation is the summing of several different pre-synaptic neurons.
A.
B.
17.  Which type of post synaptic potential causes hyperpolarization.
A.
B.
C.
D.
18.  The gaps between schwann cells are called _________
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B.
C.
D.
19.  Somatic motor neurons also innervate glandular tissue.
A.
B.
20.  Pre-synaptic neurons always secrete acetylcholine. 
A.
B.
21.  The sympathetic division conserves energy and promotes nonemergency functions.
A.
B.
22.  Sympathetic neurons have long pre-ganglionic fibers and short post-ganglionic fibers.
A.
B.
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23.  The autonomic nervous system is responsible for maintaining the constancy of the body's internal environment (homeostasis).
A.
B.
24.  Releasing acetylcholine tends to excite an organ
A.
B.
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25.  A ganglion is the site where the pre-synaptic neuron synapse with the post-synaptic neuron releasing acetylcholine. 
A.
B.
26.  ____________ is the neurotransmitter that causes a muscle to contract/depolorize.
A.
B.
C.
D.
27.  The opening of Ca 2+ channels in the axon results in what?
A.
B.
C.
D.
28.  These cells cushion the brain
A.
B.
C.
D.
29.  These cells form the myelin sheath in the CNS.
A.
B.
C.
D.
30.  The white blood cells of the CNS
A.
B.
C.
D.
31.  According to Ohms law, if the voltage increases, the current decreases.
A.
B.
32.  According to Ohms law, if voltage increases, resistance decreases.
A.
B.
33.  Saltatory conduction also occurs in post-synaptic fibers.
A.
B.
34.  The greater the gradient of ions, the greater potential to do work
A.
B.
35.  Exocytosis is the process in which
A.
B.
C.
D.
36.  ATP is converted into cAMP by which enzyme?
A.
B.
C.
D.
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37.  The G protein stimulates adenylyl cyclase
A.
B.
38.  The cAMP second messenger system is an important regulatory of cellular energy during _________
A.
B.
C.
D.
39.  Most multipolar neurons are ____________
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B.
C.
D.
E.
40.  WHICH LETTER REPRESENTS THE AXON HILLOCK?
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B.
C.
D.
E.
41.  SYNAPTIC VESICLES ARE STORED HERE.
A.
B.
C.
D.
42.  WHICH LETTER REPRESENTS THE DENDRITES?
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B.
C.
D.
43.  FORMS THE MYELIN SHEATH IN THE PNS
A.
B.
C.
D.
44.  "J" REPRESENTS THE _____________
A.
B.
C.
D.
45.  "C" REPRESENTS THE ___________
A.
B.
C.
D.
E.
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