OTD 515: Motor Areas // cerebral cortex (midterm)
1.
- anitcipating postural movement
- laterla trunk and
girdle muscles
- Lesion: aphaxia and perservating
2.
- bilateral movemnt
- orientation of head and eyes
(scanning the room, typing while watching the board)
- initiation of movement, sequencing of movement, muscle memory
(pre-programming of motor sequences
- Lesion: aphaxia
3.
- expressive langaige
- speech production
- Lesion:
broca's aphaxia
4.
primary motor cortex (precentral gyrus)
- voluntray movemnt, skilled hand movement
- activaiton of
the agonist's muscle, inhibiting antagonist's muscles
- force, direction, and speed
- spatial and temporal
aspects of movement
- Lesion: paresis (strength/control
loss), loss of motor movement, spastic dysarthia