Which of the following valves would be affected if papillary muscles and/or chordae tendinae stopped functioning?
What will be an ideal response?
mitral valve
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The vitamin that is a constituent of coenzyme FAD is
A) thiamine (B1). B) riboflavin (B2). C) niacin (nicotinic acid). D) folate (B9). E) cobalamin (B12).
The postganglionic axons from the superior mesenteric ganglion innervate
A. the distal half of the duodenum. B. part of the pancreas. C. part of the small intestine. D. the proximal part of the large intestine. E. All of the choices are correct.
Which of the following types of stimuli produces only a local potential, but not an action potential?
A) maximal B) supramaximal C) threshold D) subthreshold
Which of the following is a special characteristic of spongy bone?
A) lacuna B) medullary cavity C) trabecula D) central canal E) canaliculus