Which of the following is a portal system?
A. Heart ? artery ? artery ? arteriole ? capillary bed ? venule ? vein ? heart
B. Heart ? artery ? arteriole ? capillary bed ? venule ? vein ? vein ? heart
C. Heart ? artery ? arteriole ? capillary bed ? arteriole ? capillary bed ? venule ? vein ? heart
D. Heart ? artery ? vein ? heart
Answer: C
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The hormones that are of primary importance to normal growth include __________.
a. TSH, ACTH, insulin, parathormone, and LH b. ADH, AVP, E, NE, and PTH c. GH, thyroid hormones, insulin, PTH, and reproductive hormones d. mineralocorticoids, glucocorticoids, ACTH, LH, and insulin
The central principle of physiology is
A) nutrition. B) reflexes. C) homeostasis. D) stimulation. E) temperature regulation.
Sally has elevated levels of blood calcium. What chemical would you expect to find in high levels in response to this condition?
A. sex hormones B. parathyroid hormone C. growth hormone D. calcitonin E. vitamin D
Which of the following is NOT served by the somatic sensory division of the PNS?
A. Special senses B. Skin C. Stomach D. Skeletal muscles