Smooth muscle tone is maintained by the prolonged presence of _____ in the muscle cell's cytosol?
a) ATP
b) calcium ions
c) phosphate ions
d) myoglobin
e) None of these choices.
b
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Plasma is a yellowish fluid
Indicate whether the statement is true or false.
The meshwork of elastic fibers that make the arachnoid mater look "webby" are (the)
A) arachnoid trabeculae. B) subarachnoid spaces. C) arachnoid granulations. D) arachnoid extensions. E) None of the answers are correct.
The sensitivity of the uterus to oxytocin is increased by ________.
A. prostaglandin B. testosterone C. progesterone D. estrogen
Most body water intake is from ________, whereas most body water lost is via ________.
A. drinking; urine B. drinking; cutaneous transpiration and expired air C. metabolic water; sweat D. metabolic water; cutaneous transpiration E. drinking; radiation