Which of the following occurs first in hemostasis?

A. activation of the fibrinolytic system
B. platelet aggregation
C. a clotting cascade that leads to the conversion of fibrinogen to stable fibrin
D. conversion of prothrombin to thrombin
E. conversion of plasminogen to plasmin


B

Anatomy & Physiology

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

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The pelvic diaphragm is formed by the

A. levator ani only. B. deep transverse perineum muscle. C. levator ani and coccygeus muscles. D. sphincter urethrae and sphincter ani muscles. E. coccygeus only.

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The countercurrent mechanism functions primarily in the

A) distal convoluted tubule B) nephron loop. C) proximal convoluted tubule. D) renal corpuscle.

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Carbon dioxide binds to hemoglobin in the same binding site as oxygen does.

a. true b. false

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