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EXSC 463 EXERCISE PHYSIOLOGY FINAL EXAM BYU 2025 WITH 250 EXAM QUESTIONS AND CORRECT ANSWERS/ BYU EXSC 463 FINAL TEST 2025 (BRAND NEW!)$26.99
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EXSC 463 EXERCISE PHYSIOLOGY FINAL
EXAM BYU 2025 WITH 250 EXAM QUESTIONS
AND CORRECT ANSWERS/ BYU EXSC 463 FINAL
TEST 2025 (BRAND NEW!)
Susan stopped her exercise program during the COVID-19 pandemic. The loss of
physical fitness that she experienced is an example of which principle of training?
A. Plateau
B. Retrogression
C. Reversal
D. Overreaching - ANSWER-C. Reversal
Force of contraction is graded by the recruitment of motor units in which of the
following types of muscle?
A. Smooth muscle
B. Cardiac muscle
C. Skeletal muscle
D. All of the above
E. B and C - ANSWER-C. Skeletal Muscle
The blood shunt refers to the _____.
A. increase in blood flow to the entire body during exercise
B. equal increase in blood flow to all skeletal muscle during exercise
C. the prioritization and redistribution of blood flow to metabolically active muscle
during exercise. - ANSWER-C. the prioritization and redistribution of blood flow
to metabolically active muscle during exercise.
pg. 1
,The motor response of an organ that has dual innervation depends on _____.
A. which motor neuron is turned on and which is turned off
B. the net effect of stimulation of both motor neurons
C. what neurotransmitters are released and to what receptors they bind -
ANSWER-B. the net effect of stimulation of both motor neurons
Sympathetic stimulation of the heart will result in _____.
A. an increase in heart rate
B. an increase in the force of contraction of the heart
C. an increase in both heart rate and force of contraction - ANSWER-C. an
increase in both heart rate and force of contraction
The size of a neuron refers to _____.
A. the number of muscle fibers it innervates
B. the type of muscle fibers it innervates
C. the number of terminal ends it has
D. the cross-sectional area of its axon
E. the size of its cell body - ANSWER-D. the cross-sectional area of its axon
Which of the following motor neurons would conduct an action potential the
slowest?
A. A large myelinated neuron
B. A small myelinated neuron
C. A large unmyelinated neuron
D. A small unmyelinated neuron - ANSWER-D. a small unmyelinated neuron
pg. 2
,Outside of the spinal cord, ganglia are part of the _____.
A. sympathetic motor nervous system
B. parasympathetic motor nervous system
C. somatic motor nervous system
D. autonomic motor nervous system
E. all of the above - ANSWER-D. autonomic motor nervous system
The 'size' of the motor unit _____.
A. reflects the size of the motor neuron and the order of its recruitment
B. the type of muscle fibers in the motor unit
C. the number of muscle fibers in the motor unit
D. the size of the muscle fibers in the motor unit - ANSWER-C. the number of
muscle fibers in the motor unit
Compared to resting conditions, which of the following is necessary to increase
blood flow to active skeletal muscle during exercise?
A. An increase in total blood flow (i.e., cardiac output).
B. A decrease in venous pooling and an increase in venous return to the heart.
C. The prioritization and redistribution of blood flow away from less metabolically
active
tissue to the more metabolically active skeletal muscle mass.
pg. 3
, D. All of the above. - ANSWER-D. All of the above
A specific neurotransmitter _____.
A. will always cause the same response (excitation or inhibition) at different
locations
B. can be excitatory at one location and inhibitory at another location
C. will only be either excitatory or inhibitory, but never both - ANSWER-B. can be
excitatory at one location and inhibitory at another location
The autonomic nervous system has antagonistic control of _____.
A. Heart rate
B. force of the heart's contraction
C. heart rate and force of contraction of the heart - ANSWER-A. Heart Rate
Compared to resting, during exercise, the blood shunt _____.
A. increases blood flow to the entire body
B. increases blood flow to all skeletal muscle
C. redistributes and prioritizes blood flow based on metabolic demand
D. A and B
E. All of the above - ANSWER-C. Redistributes and prioritizes blood flow based
on metabolic demand
Bob is exercising at an intensity equivalent to 5 METs. Which of the following is a
true statement about Bob's exercise?
A. Bob is exercising at a "light" intensity.
B. Bob is expending about 17.5 kcal/min.
C. Bob is meeting the minimal physical activity recommendations.
pg. 4
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