review

Question 1

hormones can be released or controlled by **

Answer 1

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

Question 2

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

Answer 2

contract; relax

Question 3

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

Answer 3

monosynpatic towards agonist (one synapse)

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

Question 4

which occurs first as a result of ATP binding to myosin

Answer 4

actin dissociates from myosin

Question 5

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

Answer 5

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

Question 6

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

Question 7

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

Answer 7

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