One Reason Our Lips and Fingertips Are So Sensitive Is

question 220

Multiple Choice

One reason our lips and fingertips are so sensitive is that they:

• A)are used much more often than other areas of the body.
• B)contain a relatively sparse arrangement of touch receptors.
• C)are connected directly to the receptors in the spinal cord.
• D)have a large topographical representation in the somatosensory cortex.

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