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