During pregnancy, the production of prolactin-releasing hormone is inhibited by the ________.
A. high blood level of relaxin
B. low blood level inhibin
C. high blood levels of estrogens and progesterone
D. high blood level of hCG
Answer: C
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Which of the following is (are) not part of the peripheral nervous system?
a. motor neurons b. sympathetic nervous system c. spinal cord d. afferent division e. autonomic nervous system
How does aging affect the endocrine system?
A. Endocrine system imbalances can lead to weight gain or muscle loss. B. Aging reduces the efficiency of endocrine system functions. C. Secretory activity of endocrine glands decreases. D. Normal levels of hormones, particularly growth hormone and sex hormones, often decrease. E. All of the choices are correct.
________ provides the energy to help the myosin heads form and break the crossbridges with actin.
A. ATP B. Calcium C. Potassium D. Vitamin D
Loss of function in the pituitary gland in a male would most likely result in ________
A) Decreased stimulation of GnRH B) Increased stimulation of FSH C) Increased gamete development D) Inhibited gamete development