Which of the following is the first step of hemostasis?

A) secretion of histamine
B) vascular spasm
C) formation of a blood clot
D) formation of a platelet plug
E) formation of a fibrin clot


Answer: B) vascular spasm

Anatomy & Physiology

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The thirst center can be activated by ________.

A. aldosterone B. ANP C. ADH D. angiotensin II

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A fall in blood fatty acid concentration directly inhibits insulin output and stimulates glucagon output by the liver

a. True b. False Indicate whether the statement is true or false

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The feeding and satiety centers are located in the hypothalamus

Indicate whether the statement is true or false

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