This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Gait apraxia is seen in thromboembolic episode involving: 
Select and explain. 
A. ACA, B. MCA, C. PCA, D. Posterior choroidal aery
A: ACA
Answer: A: ACA 
Explanation: Ans. a. ACA (Ref: Harrison 19/e p163, 18/e p193)Gait apraxia is seen in thromboembolic episode involving anterior cerebral aery.Frontal lobe is mainly supplied by anterior cerebral aery; its occlusion leads to gait apraxia