What's the name of the process in which the spinal interneurons inhibit the antagonist motor neurons?
A. Inhibitory Stimulus
B. Reciprocal Inhibition
C. Contraction
D. hyperpolarization
B. Reciprocal Inhibition
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Cross bridge detachment is caused by ________ binding to the myosin head
A) ATP B) calcium C) magnesium D) acetylcholine E) acetylcholinesterase
Increasing the number of active motor units within a skeletal muscle is called
a) wave summation. b) fused tetanus. c) motor unit recruitment. d) muscle tone. e) flaccidity.
The oxygen equilibrium curve reaches a plateau when
A) The blood has reached its carrying capacity. B) Respiratory pigment molecules are depleted of oxygen. C) Iron levels are high. D) The cycle of inhalation is complete.
The sites where a chemical substance is transmitted from the presynaptic terminal of an axon to the postsynaptic membrane of a muscle fiber are called
A. cell bodies of neurons. B. Z disks. C. myofilaments. D. sarcomeres. E. neuromuscular junctions.