Exercise Physiology Exam 2

64 Questions  I  By Kingslo
Quiz based on the notes for exam 2 Note: Any question that says "(check all that apply)" means that thier is MORE THAN ONE answer to the question!

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