Cortical motor structures

Question 1

Primary Motor Cortex (M1)

Answer 1

Direction based movement, activation of lower motor structures. Lies betw. frontal and parietal cortex (border)

Question 2

Premotor

Answer 2

Learning complex movements, control over muscles in trunk and proximal muscles. Left bottom to M1

Question 3

Broca

Answer 3

Premotor area in left hemisphere is region dedicated to speech output.

Question 4

SMA

Answer 4

Planning of learned sequences of movement like playing guitar once you’ve mastered it Highest part next to M1

Question 5

PPC (posterior parietal cortex)

Answer 5

Computation for location-based movement. Grasping/reaching. Adds visual input, also key for knowledge how to use tools.