Anatomy & Physiology Exam 4

45 Questions  I  By Kingslo on March 11, 2010
Practice quiz for the nervous system exam. Anatomy & Physiology, UTSA, KIN 3313

  

Question Excerpt

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