Question

"Hands have more dexterity and occupy more motor cortex."But is there a numerical table for their percentages?Lips and tongue are big, but how big? 13%? 17%?Is there a quantitative report for this?

Answer 1

The motor cortex has larger representation for hands and face due to fine and agile movements. No specific quantitative report provides exact percentages or sizes.

Step-by-step explanation:

The homunculus map in the brain shows that the hands have a larger representation in the motor cortex compared to the legs and other body parts. The hand and face areas occupy relatively large areas of the motor cortex due to their fine and agile movements, while muscles that perform coarser movements take up less space. However, there is no specific numerical table or quantitative report that provides the exact percentages or sizes for the hands, lips, and tongue in the motor cortex.