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Exercise Physiology Exam 2

64 Questions  I  By Kingslo
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Exercise Physiology Exam 2
Quiz based on the notes for exam 2

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1.  The sarcolemma is the membrane of a muscle fiber.
A.
B.
2.  The human body contains over ___ voluntary skeletal muscles.
A.
B.
C.
D.
3.  ______ and  _____ causes depolarization of the postsynaptic membrane. (neurotransmitter and ion) (check all that apply)
A.
B.
C.
D.
E.
4.  What percent of all skeletal muscles constitute the total weight of the human body
A.
B.
C.
D.
5.  The cerebellum has connections to the motor cortex, brain stem, and spinal cord.
A.
B.
6.  Sympathetic neurons have short preganglionic fibers and long postganglionic fibers.
A.
B.
7.  The "All or none" law states that once a nerve impulse is initiated, it will travel the length of the neuron.
A.
B.
8.  What is the function of a muscle spindle? (check all that apply)
A.
B.
C.
D.
9.  Which structure in the neuron generates the action potential?
A.
B.
C.
D.
10.  Glands are innervated by the somatic motor system
A.
B.
11.  _________ is the neurotransmitter that stimulates the muscle to depolarize.
A.
B.
C.
D.
12.  The ____________ system causes an increase in glucose uptake for energy utilization.
A.
B.
C.
13.  The peripheral nervous system consists of the brain and spinal cord.
A.
B.
14.  Which division of the ANS causes an increase in the salivary gland volume and a decrease in its viscosity.
A.
B.
15.  Which is true about the sodium-pottasium pump?
A.
B.
C.
D.
E.
16.  In the peripheral nervous system, the myelin sheath is formed by olegodendrocytes.
A.
B.
17.  Skeletal muscles are innervated by neurons in the motor division.
A.
B.
18.  What happens during repolarization? (check all that apply)
A.
B.
C.
D.
19.  The _______ surrounds bundles of muscle fibers
A.
B.
C.
D.
20.  Along with the nervous system, which other system controls the internal environment. (homeostasis)
A.
B.
C.
D.
21.  Which proprioceptor detects rate of joint rotation?
A.
B.
C.
D.
22.  Spinal tuning deals with involuntary skeletal movement.
A.
B.
23.  A ganglion is a site where the presynaptic neuron synapse with the postsynaptic neuron releasing acytocholine.
A.
B.
24.  The muscle spindle is also known as the "length detector".
A.
B.
25.  The motor cortex is responsible for sending the information down to the association areas.
A.
B.
26.  Where will you be able to find pacinian corpuscles?
A.
B.
C.
D.
27.  The sacroplasmic reticulum is the storage site for _______.
A.
B.
C.
D.
E.
28.  Afferent fibers are fibers that transmit impulses from receptors to the CNS
A.
B.
29.  Which type of proprioceptors are found in ligaments and around joints.
A.
B.
C.
D.
30.  The sympathetic division causes pupil constriction
A.
B.
31.  Releasing norepinephrine tends to excite an organ.
A.
B.
32.  What is the function of the vestibular apparatus? (check all that apply)
A.
B.
C.
D.
E.
33.  The M line separates each sacromere.
A.
B.
34.  Where is the vestibular apparatus located
A.
B.
C.
D.
35.  Which brain structure connects the brain and spinal cord.
A.
B.
C.
D.
E.
36.  The ______ is responsible for cardiorespiratory control.
A.
B.
C.
D.
E.
37.  The opening of Ca2+ channels in the axons results in what?
A.
B.
C.
D.
38.  Sympathetic neurons are found in the brain and sacral spinal cord and parasympathetic neurons are found in the thoracic and lumbar spinal cord.
A.
B.
39.  Generally, what is the charge of a neurons at rest?
A.
B.
C.
D.
40.  Which neurological disease destroys the myelin sheath of axons?
A.
B.
C.
D.
E.
41.  What happens during the an action potential?
A.
B.
C.
D.
E.
42.  The dendrites are the receptive regions of the neuron.
A.
B.
43.  Viscosity of the saliva increases with exercise. 
A.
B.
44.  Sends information back to the CNS about the metabolic rate of muscular activity.
A.
B.
C.
D.
45.  The muscle spindle causes the muscle to relax while the golgi tendon causes the muscle to contract.
A.
B.
46.  Which band represents myosin and actin?
A.
B.
C.
D.
E.
47.  Disorder of the basal ganglia may cause Parkinson's Disease.
A.
B.
48.  The maximum velocity of shortening is greatest at the highest force.
A.
B.
49.  Which type of post-synaptic potential causes hyperpolarization
A.
B.
C.
D.
50.  The synapse of a neuron is where synaptic vesicles are stored.
A.
B.
51.  The autonomic nervous system is responsible for maintaining the constancy of the body's internal environment.
A.
B.
52.  What happens during reciprocal inhibition?
A.
B.
C.
D.
53.  As a result of stimulation to the golgi tendon organ, excitatory neurons send ESPS to muscle fibers.
A.
B.
54.  The predominant energy system for type IIa muscles fibers is ___________ 
A.
B.
C.
55.  Post-ganglionic fibers of the autonomic nervous system are non myelinated.
A.
B.
56.  The basal ganglia produces fast, ballistic movement.
A.
B.
57.  The gaps between schwann cells are called nodes of Ranvier.
A.
B.
58.  Temporal summation is the summing from several different pre-synaptic neurons.
A.
B.
59.  The first step in performing a voluntary movement occurs in the ________.
A.
B.
C.
D.
60.  Which proprioceptor is sensitive to touch and pressure?
A.
B.
C.
D.
61.  Somatic motor neurons also innervate glandular tissue (glands).
A.
B.
62.  Acytocholine is a cholinergic neurotransmitter
A.
B.
63.  Which band represents actin? 
A.
B.
C.
D.
E.
64.  Presynaptic neurons always secrete acytocholine
A.
B.
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