The sensory homunculus is a map that shows (the)
A) number of muscles under the skin.
B) number of sensory receptors in regions of the body.
C) relative size of sensory regions in the body.
D) size of sensory units.
E) All of the answers are correct.
B) number of sensory receptors in regions of the body.
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Accomodation describes the focusing of light on the retina by changing
A) distance of the retina from the lens. B) the shape of the lens. C) pupillary diameter. D) the shape of the cornea.
When glucose enters glycolysis, it
A. is converted into acetyl CoA. B. is oxidized to two pyruvate molecules. C. forms the coenzyme NAD. D. binds to oxaloacetic acid and forms citric acid.
Which of the following muscles of the lower back inserts on the humerus and helps to move the arm?
A) latissimus dorsi B) subscapularis C) serratus posterior inferior D) longissimus thoracis
Postganglionic parasympathetic fibers secrete the neurotransmitter ________.
Fill in the blank(s) with the appropriate word(s).