Medial rotation of the eyeball is performed by the ________ muscle
A) inferior rectus
B) lateral rectus
C) medial rectus
D) superior rectus
E) inferior oblique
C
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Temporal summation is used in the body to
A. increase the amount of force generated by skeletal muscle fibers. B. activate nearby skeletal muscle fibers, when a muscle fiber is under constant stimulation. C. maintain constant tension in a muscle fiber every time it contracts. D. decrease muscle contraction in muscle fibers, to prevent damage to the cells. E. accomplish all of these functions.
In the diagram, what would happen to the concentration of C if the concentration of A increases?
a) increases b) decreases c) no change
The length of the cardiac cycle is normally ________ second(s) in length
A) 2 B) 4 C) 0.8 D) 0.3
A myelin sheath is composed primarily of __________.
A. lipids B. carbohydrates C. glycoproteins D. proteins E. polysaccharides