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

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