Question

Quickly state the differences in function from the motor cortex, premotor cortex, and prefrontal cortex.

Answer 1

The motor cortex initiates and executes voluntary movements, the premotor cortex plans and coordinates complex movements, and the prefrontal cortex is responsible for executive functions and higher cognitive processes.

Step-by-step explanation:

The motor cortex, premotor cortex, and prefrontal cortex are all regions of the frontal lobe that play different roles in motor functions and cognitive processes.

1. Motor Cortex: Located in the precentral gyrus, the primary motor cortex is responsible for initiating and executing voluntary movements. It sends signals to the spinal cord and peripheral muscles to produce specific movements.
2. Premotor Cortex: The premotor cortex is involved in planning and coordinating complex movements by integrating information from various sensory areas. It helps in the preparation of movement sequences and plays a role in motor learning.
3. Prefrontal Cortex: The prefrontal cortex is responsible for executive functions and higher cognitive processes. It is involved in decision-making, working memory, attention, and inhibiting distracting thoughts and actions to achieve goals.