When a clot is no longer needed, fibrin is dissolved by ________.

A. plasmin
B. thromboplastin
C. platelet-derived growth factor
D. prothrombin
E. kallikrein


Answer: A

Anatomy & Physiology

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Decrease in alveolar oxygen concentration causes

a. vasoconstriction of the pulmonary arteriole. b. relaxation of bronchiolar smooth muscle. c. vasodilation of the pulmonary arteriole. d. vasoconstriction of the pulmonary arteriole and vasodilation of the pulmonary arteriole. e. vasoconstriction of the pulmonary arteriole and relaxation of bronchiolar smooth muscle.

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A marked decrease in urine output is called:

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Gustatory information reaches the brain by way of cranial nerve

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