Question

A 61-year-old business executive with a long history of high blood pressure collapsed while jogging over the lunch hour. His jogging mate quickly contacted a police officer who helped carry the man to a hospital just down the road. At the hospital, an MRI was performed that revealed a blockage of a major cerebral artery and ischemic changes to the portion of the brain supplied by that artery. With quick medical attention, the man was stabilized, and he slowly improved over the next three weeks. The following signs and symptoms did persist, however:

- paralysis of the right leg and foot
- loss of sensation on the skin of the right leg and foot
- when blindfolded, inability to identify a tennis ball placed in the left hand, but ability to name it if placed in the right hand
- inability to throw the tennis ball with his left hand, but ability to throw it with his right hand

Questions:

1. Which artery was blocked in this case? (Be Specific)

2. Why has he lost sensation in the right leg and foot?

Answer 1

1. Middle cerebral artery is the most often occluded artery during a stroke. Left and right MCA arise from trifurcations of carotid arteries andits is largest among various braches of the internal carotid.

2. It is responsible for the supply of blood to frontal lobe and the lateral surface of the temporal and parietal lobes. It also includes the primary motor and sensory areas of the face, throat, hand and arm. The dominant hemisphere also enriched by tis and the speech activity control too. Occusion to MCA affect the sensitivity of right leg and foot as it is main supplier of blood to LH that leads to ischemia of dominant hemisphere associated by sensory loss of leg.