What is the first source for supplying additional ATP when exercise begins?
a. oxidative phosphorylation
b. glycolysis
c. lactate
d. creatine phosphate
e. chondroitin
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Question 2) Which statement about the brain stem is incorrect?
a. contains the medulla
b. passageway for most fibers passing between the peripheral nervous and higher brain centers
c. controls sociosexual behaviors conducive to mating
d. contains part of the reticular activating system
e. contains centers that control respiration, blood vessel and heart function, and digestive activities
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Question 3) How many additional pathways supply ATP as needed during muscle contraction?
a. 1
b. 2
c. 3
d. 4
e. 5
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Question 4) Select the characteristic that does not describe short-term memory.
a. immediate storage
b. large capacity
c. permanently forgotten
d. rapid retrieval
e. transient modifications in functions
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Question 5) How many steps in the muscle excitation, contraction, and relaxation processes require ATP?
a. 3
b. 4
c. 5
d. 6
e. 7
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Question 6) The cerebellum does not
a. play a role in balance and equilibrium
b. decrease muscle tone
c. compare the intentions of the higher motor centers with the performance of the muscles and correct any deviations from the intended movement
d. play a role in the planning and initiation of voluntary activity
e. play a role in eye movement
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Question 7) Because of skeletal constraints, what is the maximum percentage that muscles can stretch or shorten relative to their length?
a. 30
b. 35
c. 40
d. 45
e. 50
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Question 8) The cerebellum
a. primarily influences motor activity but does not have direct influence on motor neurons
b. is part of the brain stem
c. when diseased gives rise to resting tremors
d. contains the reticular activating system
e. is associated with declarative memories
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Question 9) What happens when two or more overlapping action potentials are added together within a muscle?
a. twitch fatigue
b. twitch summation
c. contraction addition
d. contraction paralysis
e. sarcoplasmic reduction
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Question 10) Most of the cranial nerves originate from the
a. brain stem
b. cerebellum
c. cerebral cortex
d. hypothalamus
e. thalamus
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