Which of the following determines the height of the peaks in multiple motor unit summation?
A) the speed of stimuli
B) the amount of tension produced by the number of motor units responding
C) the strength of each stimulus
D) none of the above
Ans: B) the amount of tension produced by the number of motor units responding
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Fill in the blank with the correct word.
The ________ is the part of the sperm that contains the enzymes necessary for fertilization.
Fill in the blank(s) with the appropriate word(s).
Supply the name of the missing vein from this sequence: superior mesenteric and splenic veins, ________, inferior vena cava.
A) phrenic vein B) hepatic portal vein C) adrenal vein D) renal vein E) azygos vein
Addition of phosphate groups to a particular molecule is catalyzed by ________.
transaminases phosphatases isomerases kinases