Which of the following is due to an aging cardiovascular system?
A) The direction of blood flow in some capillaries reverses.
B) Veins lose collagen.
C) Arteries become less rigid.
D) The tunica interna thickens.
D
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A person who has poor emotional control and difficulty in remembering past events might have a lesion in the ________.
Fill in the blank(s) with the appropriate word(s).
Each anterior pituitary hormone is controlled by a single hypophysiotropic hormone from the hypothalamus
Indicate whether the statement is true or false
Which of the following statements concerning secretin is correct?
A. Secretin is the most potent stimulus for pancreatic HCO3- secretion. B. Secretin stimulates gastrin secretion by parietal cells. C. The most potent stimulus for secretin secretion is the presence of fat in the duodenum. D. Secretin is the most potent stimulus for pancreatic digestive enzyme secretion. E. Secretin stimulates secretion by the parietal and chief cells.
The pyramidal cells of the precentral gyrus are called ________ neurons.
A. stellate B. upper motor C. first-order D. lower motor E. third-order