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What will be an ideal response?
Phosphate, Negatively charged proteins, potassium
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Which of the following statements regarding hormonal regulation of gastrointestinal function is TRUE?
A. The presence of fatty acids in the small intestine stimulates the secretion of the hormone secretin, which causes contraction of the gallbladder. B. The presence of fatty acids in the stomach stimulates secretion of CCK, which in turn stimulates enzyme secretion by cells in the antrum of the stomach. C. The presence of amino acids in the small intestine stimulates secretion of gastrin, which in turn stimulates HCl secretion by parietal cells. D. The hormone somatostatin stimulates the secretion of H+ into the lumen of the stomach. E. An increase of H+ in the small intestine stimulates secretion of the hormone secretin, which in turn stimulates HCO3- secretion by the pancreas.
Neural tissue develops in the embryo from a portion of the
A. endoderm. B. ectoderm. C. mesoderm.
"Segmentation" within the small intestine refers to the
A. propulsion of material between the segments of the GI tract. B. division of function between the different segments of the small intestine. C. back-and-forth motion that mixes chyme with glandular secretions. D. gastroileal reflex that moves materials from the stomach to the large intestine.
Which of the following muscles belongs to the group known as "hamstrings"?
A) biceps femoris B) semitendinosus C) semimembranosus D) All of the answers are correct. E) None of the answers are correct.