Neurophysiology Exam with Questions and Answers

Neurophysiology Exam with Questions and Answers Lesion to the upper motor neurons leads to? a. Decreased reflexes b. Spasticity c. Flaccid paralysis d. Negative Babinski sign e. Decreased muscle tone f. Oscillation of muscles ANSWER b. Spasticity Parkinson's disease: a. Degeneration of dopaminergic neurons in substantia nigra b. Symptoms include rigidity and decreased muscle tone c. Loss of cholinergic receptors d. Rapid movements e. Repeat of trinucleotide CAG on chromosome 4 ANSWER a. Degeneration of dopaminergic neurons in substantia nigra What is correct about cerebellum? a. It compares movement intended with actual movements b. It controls posture and equilibrium c. Lesion leads to hypertonicity d. Control muscle contraction e. All answers are correct ANSWER e. All answers are correct