The size of various regions of the primary somatic sensory cortex is proportional to the ________ sensory receptors in that area of the body.

A. location of
B. position of the
C. size of
D. number of
E. size of muscles in


Answer: D

Anatomy & Physiology

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The point of the elbow that one rests on a table is the __________ process.

Fill in the blank(s) with the appropriate word(s).

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Describe a motor unit. How many fibers does a motor unit contain?

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The pitch of a sound

a. is determined by the frequency of vibrations of air molecules b. depends on the amplitude of the waves c. is measured in units called decibels d. determines a sound's loudness e. is characterized by all of the above

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The stimulus that directly triggers release of ANP is

A. increased saltiness in the cerebrospinal fluid bathing the hypothalamus of the brain. B. increased stretch of the heart atria. C. decreased pressure detected by baroreceptors in the aorta and carotid arteries. D. increased saltiness of tubular fluid in the proximal convoluted tubule.

Anatomy & Physiology