During muscle contraction, a single myosin head consumes ATP at a rate of about ________ ATP per second.
A. 5
B. 9
C. 7
D. 3
E. 1
Answer: A
Anatomy & Physiology
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The muscle seen most anteriorly on axial CT images of the neck is the platysma.
Answer the following statement true (T) or false (F)
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The T-tubules and sarcoplasmic reticulum are unique to muscle fibers
Indicate whether this statement is true or false.
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Which of the following is not a compensation mechanism for blood loss?
a. Fluid shift from ICF to plasma b. Venous vasoconstriction c. Lowered angiotensin II production d. Thirst e. Increased renal reabsorption of salt and water
Anatomy & Physiology
Water moves back and forth across the plasma membrane by the process of
A. osmosis. B. filtration. C. facilitated diffusion. D. active transport. E. endocytosis.
Anatomy & Physiology