Drugs that stimulate alpha receptors, causing constriction of peripheral vessels, are
A) sympathetic blocking agents.
B) sympathomimetic.
C) parasympathetic blocking agents.
D) parasympathomimetic.
E) autonomic blocking agents.
B
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The intracellular digestive organelle of a cell is the
A. lipochrome. B. smooth endoplasmic reticulum. C. lysosome. D. rough endoplasmic reticulum. E. microtubule.
Why doesn’t semen enter the urinary bladder during ejaculation?
A) There is no common duct between the reproductive system and the urinary system. B) There is no urge to urinate during sexual intercourse because of the suppression of LH by testosterone buildup in the blood. C) The smooth muscle sphincter at the base of the urinary bladder closes. D) Ejaculation is a parasympathetic reflex resulting in no response by urinary contraction muscles.
Like humans, pigs have a common iliac artery that gives rise to the external and internal iliac arteries
A) True B) False
Which is caused by increased levels of the hormone cholecystokinin?
A. Secretion of HCO3- from the pancreatic duct cells B. Contraction of the gallbladder C. Contraction of the sphincter of Oddi D. Inhibition of pancreatic enzyme secretion E. Secretion of gastric H+