Question

Compare and contrast the functional roles of the supplementary motor area and the premotor cortex.

Answer 1

MOTOR CORTEX HAVE THREE AREAS OF FRONTAL LOBE-

1- SUPPLEMENTARY MOTOR AREA

2- PRIMARY MOTOR CORTEX

3-PREMOTOR CORTEX

PREMOTOR CORTEX

• Present anterior to primary motor cortex
• Play an important role in motor control
• Involved in planning movement
• helpful in controlling the movements or exact movements

SUPPLEMENTARY MOTOR AREA

• Present on the midline surface of hemishphere anterior to primary motor cortex
• Involved in movement controlling or controlling sequence of events
• involves in cordination of two side of body

Premotor cortex and SMA

• To draw out movements, both require high current
• Both are responsible for complex and appropriate motor output.