During part of the normal menstrual cycle, when the levels of progesterone and estrogen decrease, what will occur?
A. Fertilization
B. Menstruation
C. Amenorrhea
D. Ovulation
Ans: B. Menstruation
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Following severe loss of blood, the resultant reduction in circulating blood volume leads to an increase in venous return and stroke volume, a subsequent fall in cardiac output, and a rise in mean arterial blood pressure
a. True b. False Indicate whether the statement is true or false
Epithelial cells lining the crop of some birds respond to the hormone prolactin
Indicate whether the statement is true or false
Hormones that can diffuse through the cell membrane and bind to nuclear receptors are:
A) Steroid hormones B) Paracrines C) Protein hormones D) Autocrines
Which of the following would inhibit both gastric secretion and gastric motility?
A. vagal stimulation B. chewing and swallowing food C. cholecystokinin (CCK) D. gastrin E. large amounts of fiber in the diet