A 65-year-old man complains of difficulty in walking. He has a history of chronic subdural hematomas. Neurologic examination reveals psychomotor slowing, sphincter incontinence, and enlarged ventricles without convolutional atrophy. The most likely diagnosis is:

Anatomy

A 65-year-old man complains of difficulty in walking. He has a history of chronic subdural hematomas. Neurologic examination reveals psychomotor slowing, sphincter incontinence, and enlarged ventricles without convolutional atrophy. The most likely diagnosis is:

The action of digastric muscle is:

Which of the following vessels supply the anal canal?

All of the following muscles are elevators of the mandible EXCEPT: