In the primary motor cortex,the neurons that participate in the movement of a particular finger are
A) located in one somatotopically segregated finger area.
B) widely distributed over the somatotopic hand area.
C) all located in a single column.
D) all located in the left parietal lobe.
E) all located in the right parietal lobe.

Question

Quizplus · Accepted Answer

The primary motor cortex is organized somatotopically, meaning different body parts are represented in different areas. However, the neurons controlling a specific finger are not confined to a single, segregated area but are instead distributed across the broader hand area. This distribution allows for the complex and nuanced control of finger movements.

In the Primary Motor Cortex,the Neurons That Participate in the Movement