The ________ division of the autonomic nervous system is said to function during "rest and digest."
A) sympathetic
B) parasympathetic
C) thoracolumbar
D) visceral
E) somatomotor
B
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What structure fans out from the end of the AV bundle to the wall of the ventricles?
A. Sinoatrial node B. Purkinje fibers C. Atrioventricular bundle D. Atrioventricular node
A woman insists on an ultrasound and a maternal serum marker test to check for Trisomy 21 in her unborn child because she only wants to use non-invasive methods. Her obstetrician will
A. allow the maternal serum marker test but still recommend amniocentesis, because maternal serum markers and amniocentesis check chromosomes while ultrasound and CVS do not. B. heavily advise against this decision, because ultrasound and maternal serum markers do not check chromosomes while CVS and amniocentesis do. C. follow the procedures she wants, because ultrasound and maternal serum markers check chromosomes while CVS and amniocentesis do not. D. allow the ultrasound but still recommend CVS, because ultrasound and CVS check chromosomes while maternal serum markers and amniocentesis do not.
One of the standard tests of a newborn infant is to stroke the inside of its thigh to elicit the cremaster reflex. What would be the response you would expect to see?
A) twitching of the skin in the hypogastric region B) closing of the labia C) contraction of the dartos muscle D) penile rigidity E) testicular retraction
Class II MHC molecules are found _________.
A) only on granulocytes and macrophages. B) on all cells with a nucleus. C) only on liver cells and macrophages in the spleen. D) only on red blood cells. E) only on lymphocytes and macrophages.