Anatomy & Physiology Exam 4

45 Questions  I  By Kingslo
Anatomy & Physiology Exam 4
Practice quiz for the nervous system exam. Anatomy & Physiology, UTSA, KIN 3313

  
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Question Excerpt

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