review Flashcards

1
Q

hormones can be released or controlled by **

A
neurons 
in ANS (adrenal medulla and endocrine gland cell) and Hypothalamus (ant/post pit)
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2
Q

when a stretch reflex occurs the agonist muscle will —- and the antagonist muscle will —–

A

contract; relax

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3
Q

the stretch reflex has a — reflex arc towards the agonist muscle and a —- reflex arc towards the antagonist muscle

A

monosynpatic towards agonist (one synapse)

polysynaptic towards antagonist (one or more interneurons connect afferent and efferent signals)

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4
Q

which occurs first as a result of ATP binding to myosin

A

actin dissociates from myosin

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5
Q

how is the length of a skeletal muscle cell related to the force it can generate

A

skeletal muscle cells generate the most force when the contraction occurs at an intermediate length

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6
Q

which of the following statements is not true of the endocrine system **

A
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7
Q

muscle fingers have fast-glycolytic fibers
feet have slow-oxidative fibers
which describes their differences

A

feet muscle fibers have a greater abundance of myoglobin than do the hands
-myoglobin associated with slow-oxidative fibers

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