At the outer limits of a muscle's length, it still can achieve about 80 of its maximal contraction strength.
a. True
b. False
Indicate whether the statement is true or false
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Question 2) Efferent neurons are the most abundant type of neuron.
Indicate whether the statement is true or false
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Question 3) Twitch summation results primarily from a sustained elevation in cytosolic Ca2+.
a. True
b. False
Indicate whether the statement is true or false
(
Question 4) The cell bodies of afferent and efferent neurons both originate in the CNS.
Indicate whether the statement is true or false
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Question 5) Muscles that produce precise, delicate movements have fewer muscle fibers in their motor units compared to muscles made for powerful movements.
a. True
b. False
Indicate whether the statement is true or false
(
Question 6) Afferent neurons have a long peripheral axon and a short central axon.
Indicate whether the statement is true or false
(
Question 7) In an isokinetic contraction, the load remains constant as the muscle changes length.
a. True
b. False
Indicate whether the statement is true or false
(
Question 8) Interneurons lie entirely within the central nervous system.
Indicate whether the statement is true or false
(
Question 9) The action potential is over before the contractile apparatus even becomes operational.
a. True
b. False
Indicate whether the statement is true or false
(
Question 10) If neuronal pathways present at birth are not used during sensitive developmental periods, they may be eliminated.
Indicate whether the statement is true or false
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