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Homunculi of various morphologies can be seen in several species as a result of their divergent evolutionary histories. So there are differences in the sensory homunculus between giraffes and humans.

The structural properties of sensory homunculus

  • The sensory homunculus, which is located in the cerebral cortex, is a topographic representation of the sensory acuity of the body.
  • Typically, this topograph contains body components depicted along the parietal lobe's postcentral gyrus surface.
  • The sensory homunculus' topology matches the body's opposite side. This region corresponds to the sensory region of the lower extremities and genitalia, starting from the medial aspect of the postcentral gyrus.
  • The superior to superolateral portions of the postcentral gyrus, which run farther laterally along the gyrus, correspond to the neck, shoulder, and torso. This region corresponds to the upper extremities and hand and is located on the lateral side of the postcentral gyrus.
  • The inferolateral region of the postcentral gyrus corresponds to the facial and bulbar structures. Surprisingly, the face is the part of the sensory homunculus that occupies the most significant space.

To know more about sensory homunculus

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