The part of the hair that extends beyond the skin surface is called the
A. bulb.
B. papilla.
C. alopecia.
D. root.
E. shaft.
Answer: E
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Which of the following would not result in the dilation of the feeder arterioles and opening of the precapillary sphincters in systemic capillary beds?
A) a decrease in local tissue oxygen content B) an increase in local tissue carbon dioxide C) a local increase in histamine D) a local increase in pH
The term light adaptation refers to
a. the changes that occur in the visual pigment system when going from a dark into a light environment. b. the evolutionary changes that enable a species to maintain a diurnal life style. c. the changes that occur in visual pigment system when going from a light into a dark environment. d. none of these.
The residual volume is the amount of air remaining in the lungs at the end of a normal expiration
Indicate whether the statement is true or false
What does the parathyroid hormone regulate?
A) Magnesium B) Calcium C) Calcitonin D) Glucocorticoids