UMN/LMN Lesions

Question 1

Quadriplegia

Answer 1

Transection at C4,5

Question 2

Paraplegia

Answer 2

Transection below T1

Question 3

Paresis

Answer 3

Partial or incomplete paralysis

Question 4

Hemiparesis

Answer 4

Paralysis affecting only one side of the body

Question 5

Axons of corticonuclear tracts that have CONTRALATERAL projections

Answer 5

Lower part of facial nucleus
Hypoglossal nucleus
Nucleus ambiguus
Spinal accessory

Question 6

Axons of corticonuclear tracts that have IPSILATERAL projections

Answer 6

Spinal accessory nucleus

Sternocleidomastoid muscle

Question 7

Where does uvula deviate in a UMN/LMN lesion?

Answer 7

UMN: Towards site of the lesion
LMN: Away from site of lesion

Question 8

Where does tongue deviate in a UMN/LMN lesion?

Answer 8

UMN: Away from site of lesion
LMN: Towards site of lesion