This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen & Pelvis, Subject name: Anatomy
Occlusion of the artery supplying marked areas will cause all except: 
Select and explain. 
A. Urinary incontinence, B. Apraxia, C. Perianal anesthesia, D. Rectal incontinence
B: Apraxia
Answer: B: Apraxia 
Explanation: Ans. B. Apraxia* Marked area is the paracentral lobule, bounded posteriorly by the marginal ramus and anteriorly by the paracentral sulcus (a branch of the cingulated sulcus), and contains the distal part of the central sulcus.* Function: Motor and sensory innervations of the contralateral lower extremity regulation of physiological function such as defecation and micturition.* Injury to the area can cause contralateral lower limb muscle weakness, urinary and fecal incontinence, and perianal anesthesia.