Question

multiple choice question
what is the function of the cerebral cortex of the postcentral gyrus in the parietal lobe (the somatosensory cortex)?
o it interprets of written and spoken language.
o it initiates skeletal muscle contractions.
o it receives sensory signals from the skin.

Explanation:

• The first option is related to language - processing areas (like Wernicke's or Broca's area), not the somatosensory cortex.
• The second option is the function of the motor cortex (pre - central gyrus), which initiates skeletal muscle contractions.
• The somatosensory cortex (post - central gyrus) is responsible for receiving and processing sensory information from the skin (and other somatosensory inputs like from muscles, joints etc.).

Answer:

C. It receives sensory signals from the skin. (Note: Assuming the options are labeled A, B, C in order. If the original options have different labels, adjust accordingly. Here the third option "It receives sensory signals from the skin" is the correct one.)