The presence of skin blood vessels diminishes the effectiveness of the skin as an insulator
Indicate whether the statement is true or false
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Which of the following is TRUE regarding pituitary growth hormone (GH)?
A. GH exerts negative feedback on its own production by inhibiting the hypothalamic secretion of somatostatin. B. GH increases the sensitivity of tissues to the action of insulin. C. The liver produces a factor that mediates the metabolic actions of GH. D. GH stimulates insulin-like growth factor-1 (IGF-1) production by the liver and by many other cells. E. IGF-1 stimulates the secretion of GH by anterior pituitary gland cells.
Two functions of arteries include being a(n) _________________ to tissues and a pressure _________________
Fill in the blank(s) with correct word
Beta oxidation is a step in the synthesis of cholesterol that involves
A. closing of a linear fatty acid chain into a steroid loop. B. synthesis of bile salts from precursor lipids. C. breakdown of fatty acids into two-carbon units to form acetyl CoA. D. absorption of micelles from the small intestine.
In the systemic circuit, which of these best describes active hyperemia?
A. Decreased blood flow to tissues that results in vasoconstriction B. Decreased blood flow to tissues that results in vasodilation C. Increased blood pressure that drives blood more rapidly through tissues D. Increased metabolic activity that results in vasoconstriction E. Increased metabolic activity that results in vasodilation