The human integumentary system includes
A. the epidermis, dermis, and subcutaneous layer.
B. skin, nails, hair follicles, and sweat glands.
C. bones and muscles.
D. only one type of tissue.
Answer: B
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Damage to the medial rectus muscles would probably affect ________
A) convergence B) pupil constriction C) accommodation D) refraction
Which of the following statements regarding intrinsic regulation of the heart is true?
A. If cardiac muscle cells are slightly stretched, they have a stronger contraction force. B. The heart's pumping effectiveness is greatly influenced by small changes in afterload. C. Stretching the SA node will decrease generation of action potentials in the node. D. If cardiac muscle cells are slightly stretched, they have a weaker contraction force. E. Decreased venous return increases cardiac output.
One of the major effects of ANP produced by the heart is that it __________.
a. promotes water retention at the kidneys b. constricts peripheral blood vessels c. decreases thirst d. assists with the production of red blood cells
If someone's blood pressure were listed as 125/75 mmHg, then their pulse pressure would be
A. 50 mmHg. B. 40 mmHg. C. 5/3. D. 100 mmHg. E. 125 mmHg.