Motor diseases/lesions

Question 1

Amyotrophic Lateral Sclerosis (Gherig’s Disease)

Answer 1

Disease that effects alpha motor neurons. Won’t be able to control muscles anymore, up to the point where you can’t breathe. Usually 3-5 years to live (except Hawking)

Question 2

Poliomyelitis (polio)

Answer 2

Virus that selectively attacks AMNs. Not as prevalent due to vaccine, but causes strong weakness in selected areas

Question 3

Lesions in Motor cortex

Answer 3

Hemiplegia:
- half sided paralysis due to lesion of upper motor neurons coming from M1)

Apraxia:
- Loss oif motor skill due to lesion to SMA, PMC, PPC
- Not due to upper or lower neuron deficit.
- Ideomotor (conceptual idea, sort of executable but clumsy)
- Ideational Apraxia; No idea how to execute movement