The basic event in the formation of a blood clot is the change of

A. fibrinogen to fibrin.
B. thrombin to prothrombin.
C. vitamin K to prothrombin.
D. fibrin to fibrinogen.


Answer: A

Anatomy & Physiology

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The ________ receptor type is used by the heart, and when activated increases heart rate.

Fill in the blank(s) with the appropriate word(s).

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Which statement is correct?

a. During hypotonicity, water enters the cells by osmosis. b. The only cause of hypotonicity is drinking excess fluid. c. Hypotonicity is a major consequence of diabetes mellitus, which is a deficiency of vasopressin. d. Hypotonicity is usually associated with a negative water balance. e. Common symptoms of hypotonicity include dry skin and sunken eyeballs.

Anatomy & Physiology

This figure shows the muscles of the posterior trunk. What muscle does number 1 indicate?

A. Latissimus dorsi B. Trapezius C. Rhomboid major D. Supraspinatus E. Infraspinatus

Anatomy & Physiology

The adult human trachea is about ________ in diameter and contains ________ tracheal cartilages

A) 1.0 cm; 15-20 B) 1.0 cm; 10-15 C) 2.5 cm; 15-20 D) 2.5 cm; 40-50 E) None of the answers is correct.

Anatomy & Physiology