In a diagram of the human brain, which letter typically indicates the location of the primary somatosensory cortex?

• A. C, located in the occipital lobe
• B. B, located in the precentral gyrus of the frontal lobe
• C. A, located in the postcentral gyrus of the parietal lobe
• D. D, located in the temporal lobe

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the function of the primary somatosensory cortex, which is responsible for processing sensory information from the body, such as touch, temperature, and pain.
2. Step 2: Recall the anatomical location of the primary somatosensory cortex, which is situated in the postcentral gyrus of the parietal lobe of the brain.
3. Step 3: Identify the parietal lobe on the brain diagram, which is typically located behind the frontal lobe and above the temporal lobe.
4. Step 4: Locate the postcentral gyrus within the parietal lobe; this is the ridge immediately posterior to the central sulcus, separating it from the precentral gyrus of the frontal lobe.
5. Step 5: Match the letter on the diagram that corresponds to the postcentral gyrus in the parietal lobe, which is the typical location of the primary somatosensory cortex.