Bulbar and Pseudobulbar palsy Flashcards
1
Q
What is bulbar palsy?
A
Lesions in the motor nuclei of the medulla (bulb of the brainstem)
2
Q
Which CN does bulbar palsy affect?
A
CN 7-12
3
Q
What are possible causes of bulbar palsy?
A
- MND
- Guillian-Barre Syndrome
- Polio
- MG
4
Q
How does bulbar palsy present?
A
- Palsy of: Tongue, Facial muscles and Swallowing
- Sign appear like LMN signs: Flaccid, fasciculating tongue
- Gag reflex decreased
- Jaw jerk normal
- Speech may be nasal or quiet
5
Q
Is bulbar palsy LMN or UMN?
A
LMN
6
Q
What is pseudobulbar palsy?
A
Lesion is in the corticobulbar tract
7
Q
Which CN does pseudobulbar palsy affect?
A
CN 7-12
8
Q
Is pseudobulbar palsy UMN or LMN?
A
UMN
9
Q
What is required for symptoms to show with pseudobulbar palsy?
A
Bilateral damage to the tacts
10
Q
How does pseudobulbar palsy present?
A
- Increased gag reflex and jaw jerk
- Tongue is spastic
- Speech is spastic- Donald Duck
- Uncontrollable/inappropriate laughter
11
Q
What are the commonest causes of pseudobulbar palsy?
A
Cerebrovascular disease- commonest
MS
MND
