Melanin
A. is transferred to other cells by osmosis.
B. is absent in individuals known as albinos.
C. is a pigment produced by cells in the stratum corneum.
D. makes the skin lighter.
E. is increased with exposure to infrared light.
B
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An intestinal hormone that stimulates the release of insulin from the pancreatic islet cells is
A) enterocrinin. B) enteropeptidase. C) secretin. D) cholecystokinin. E) gastric inhibitory peptide (GIP).
____________________ is the primary trigger for the release of insulin from pancreatic beta cells
Fill in the blank(s) with correct word
A muscle that extends both the wrist and the index finger is the
A. extensor indicis. B. extensor carpi ulnaris. C. extensor pollicis longus. D. extensor carpi radialis longus. E. extensor digiti minimi.
Within lymph nodes, fixed macrophages and dendritic cells remove at least ________ percent of antigens arriving in lymph.
A) 10 B) 25 C) 50 D) 80 E) 99