The very brief moment following stimulation when a muscle remains unresponsive to additional stimulation is called the
A. relaxation
B. contraction
C. refractory period
D. latent period
Answer: C. refractory period
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What will be an ideal response?
Which of the following is not true of the Rh factor?
A. It was named for the Rhesus monkey, in which it was first discovered. B. It is an antigen found on some people's red blood cell membranes. C. The most reactive of the Rh antigen group is antigen B. D. A high percentage of Americans have the Rh factor. E. All of these are true of the Rh factor.
Lead poisoning can be detected by doing an analysis of ________.
A. nails B. sweat C. skin folds D. skin E. hair
Brachioradialis and sternocleidomastoid are named for ________
A) their relative size B) their shape C) the direction of their muscle fibers D) the location of their origin and insertion