cerebellar signs
TRANSCRIPT
Cerebellar Signs
Topic discussion by : ENT – II department
Anatomy (and correlation of functions)
• There are three area of cerebellum….
LOBE FUNCTION
Anterior lobe Tone
Posterior lobe Coordination of movement
Flocculo-nodular lobe Balance
Anatomy (and correlation of functions)
Area of cerebellum function
Vermis Represent trunk (axial) musculature
Para-vermal area Represent limb musculature
Rest of cerebellar hemisphere
• By other method, we can devide it into….
Cerebellar signs
Involvement of anterior lobe (paleocerebellum)
Flail joints : lake of stability of joints
Pendular knee jerk : tapping of patellar tendon produces oscillating movements of leg.
Ataxia : inability in maintaining balance while walking
Cerebellar signs
Involvement of Posterior lobe (neocerebellum)
• Dysmetria : inability to measure the distance for reaching the intended target.• Tests - Finger nose test
- Finger finger test
• Intention tremor : due to dysmetria
• Dysdiadochokinesia : inability to do alternate opposite movement rapidly.• Eg. Supination and pronation
Cerebellar signs
• Dysarthria/ scanning of speech : speech is prolonged and with pauses in wrong places.
• Rebound phenomenon : pt is unable to check the action of agonist muscle by corresponding antagonist muscle.
Cerebellar signs
Involvement of flocculo-nodular lobe (Archiocerebellum)
• Trunkal Ataxia and staggering gait• Pt. is unsteady while standing and staggering while walking.• Walk with two legs well apart.• Sways from side to side
o Test : Romberg test
• Nystagmus• Involuntary to and fro oscillatory movement of eyeball while looking on either side.
Thank You