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