When the heart is sympathetically stimulated,
a. ESV will likely decrease
b. it is responding to acetylcholine
c. the fibrous skeleton of the heart is depolarizing
d. its stroke volume will decrease
e. all except c will occur
A
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Answer the following statements true (T) or false (F)
1. The prone position is a position in which the body is lying face up. 2. The supine position is a position in which the body is lying face up. 3. Superior means toward the head. 4. Because humans walk upright, superior and superficial mean the same thing. 5. Anterior and proximal are opposite terms.
What determines the color of skin?
A. The amount of melanin that melanocytes produce B. The number of melanocytes in the epidermis C. The density of hair D. The thickness of the epidermis
The number of chromosomes in a secondary oocyte is
A. less than the number in a polar body. B. the same as the number in a mature sperm. C. greater than the number in a polar body. D. greater than the number in a mature sperm. E. less than the number in a mature sperm.
Which of the following are appropriate units for tangential acceleration?
A. rad/s B. m/s C. rad/s2 D. m/s2