Features of parkinsons disease-
Rigidity is seen in Parkinson's disease. Two types : 1) Cogwheel type, mostly upper limbs(due to tremor superimposed on rigidity) 2) Lead pipe rigidity Rigidity causes stiffness and flexed posture. Ref Harrison20th edition pg 1567
Decreased Blinking
Rigidity
On-off phenomenon
Objective (downside arrow) muscle power
C.N.S