Which action leads to the closure of the right atrioventricular valve?
A. Contraction of the right atrium
B. Contraction of the left atrium
C. Contraction of the right ventricle
D. Relaxation of the right ventricle
E. Relaxation of the left atrium
C
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The blood vessel that supplies blood to the pancreas, the small intestine, and most of the large intestine is the
A) celiac artery. B) inferior mesenteric vein. C) hepatic portal vein. D) gastric vein. E) superior mesenteric artery.
Which of the following is incorrect pertaining to pelvic parasympathetic innervation?
A) It derives from spinal segments S2-4. B) It stimulates rectal contraction for defecation. C) It stimulates bladder contraction for urination. D) It stimulates ejaculation. E) The fibers are accompanied by visceral afferent fibers from pelvic viscera.
Match the enzyme with the products of its digestive activity.A. Glucose and galactoseB. Amino acidsC. Fatty acids and glycerolD. Maltose and isomaltoseE. Polysaccharides and disaccharidesPancreatic amylase
Fill in the blank(s) with the appropriate word(s).
Poisons like cyanide bind to ________ and prevent electron transfer
A) enzymes B) the endoplasmic reticulum C) acetyl-CoA D) cytochromes E) mitochondria