The anterior pituitary
a. is also known as the adenohypophysis.
b. is composed primarily of nervous tissue.
c. primarily secretes tropic hormones.
d. both (a) and (c) above.
e. all of these answers.
D
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Compared with skeletal muscle, which of the following is not true of smooth muscle?
A. There is one nucleus per cell. B. There are no striations. C. There are no Z discs. D. It has an ability to regenerate through mitosis. E. There are more T tubules.
As you walk, your gastrocnemius muscle (calf muscle) contracts, shortening and causing plantar flexion from the ankle. This muscle contraction is describing as being ________.
Fill in the blank(s) with the appropriate word(s).
Cody has always carefully controlled her caloric intake, and is lean. During her unplanned pregnancy, she continued to eat the same, hoping that taking prenatal vitamins and minerals would ensure that her fetus would grow normally. Her only complication during pregnancy was persistent constipation and consequent hemorrhoids. She gained only the minimum weight suggested by her doctor, and
delivered a healthy, full-term infant; her pre-pregnancy weight was rapidly reestablished. Propose an explanation for how she managed to gain enough weight, did not violate the law of conservation of mass, and for her only complication. What does this suggest about "eating for two" that some pregnant women do? What will be an ideal response?
Which of the following events in the chloride shift occurs last?
A. Carbon dioxide diffuses into a red blood cell. B. Carbonic acid dissociates to form bicarbonate and hydrogen ions. C. Bicarbonate ions diffuse into the plasma. D. CO2 and H2O ? H2CO3 E. Carbonic acid dissociates to form water and carbon dioxide.