Basal ganglia-Pathway

Question 1

72M
Involuntary movements of his right arm

while watching TV his arm- threw the remote control across the room

HTN + DM

physical exam - large amplititude flinging movements affecting the proximal muscles of his right arm ?? which area ?

Answer 1

subthalamic nucleus

Question 2

movement disorder - charactyerized by wild involuntary large amplitude flinging movements involve proximal limb one side of the body ?????

Answer 2

Hemiballism

Question 3

hemiballism cause ?

Answer 3

damage to the subthalamic nuclues - damage in basal ganglia output

Question 4

risk of hemiballsim ?

Answer 4

lacunar stroke
long standing HTN + DM