review Flashcards
hormones can be released or controlled by **
neurons in ANS (adrenal medulla and endocrine gland cell) and Hypothalamus (ant/post pit)
when a stretch reflex occurs the agonist muscle will —- and the antagonist muscle will —–
contract; relax
the stretch reflex has a — reflex arc towards the agonist muscle and a —- reflex arc towards the antagonist muscle
monosynpatic towards agonist (one synapse)
polysynaptic towards antagonist (one or more interneurons connect afferent and efferent signals)
which occurs first as a result of ATP binding to myosin
actin dissociates from myosin
how is the length of a skeletal muscle cell related to the force it can generate
skeletal muscle cells generate the most force when the contraction occurs at an intermediate length
which of the following statements is not true of the endocrine system **
muscle fingers have fast-glycolytic fibers
feet have slow-oxidative fibers
which describes their differences
feet muscle fibers have a greater abundance of myoglobin than do the hands
-myoglobin associated with slow-oxidative fibers