An intestinal hormone that stimulates mucus secretion by the submucosal duodenal glands and dilation of intestinal capillaries is
A) secretin.
B) cholecystokinin.
C) vasoactive intestinal peptide (VIP).
D) gastric inhibitory peptide (GIP).
E) gastrin.
Answer: C
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Sarah is a sprinter who specializes in quick and powerful bursts of speed followed by periods of rest. Priya is a marathon runner who specializes in long, steady runs. Compared to Sarah's muscles, how are Priya's most likely to differ?
A. Priya's type 2X fibers will be larger in diameter. B. Priya muscles will have more glycogen stored in her type 2X muscle fibers. C. Priya's muscles will have more mitochondria in her type 1 and 2A muscle fibers. D. Priya's muscles will have less myoglobin in her type 1 muscle fibers. E. Priya will have a greater proportion of type 2 muscle fibers and a lower proportion of type 1 fibers than Sarah.
____________________ is a respiratory disease characterized by collapse of the smaller airways and a breakdown of alveolar walls
Fill in the blank(s) with correct word
Living cells cannot be viewed under an electron microscope
Indicate whether the statement is true or false.
Cerebrospinal fluid (CSF) is manufactured in the:
A. subarachnoid space. B. ventricles of the brain. C. posterior pituitary gland. D. anterior pituitary gland.