Exam # 4 Extra points A 77-year-old woman was cooking in the kitchen when she co

Question

Exam # 4 Extra points A 77-year-old woman was cooking in the kitchen when she collapsed onto the floor. Her daughter called an ambulance and the woman was taken to the emerçency room. She had suffered a stroke, and slowly regained consciousness over the next two days. However, when she woke up, she had the following signs and symptoms: - paralysis of the right face and arm - loss of sensation to touch on the skin of the right face and arm - inability to answer questions but ability to understand what was said to her - ability to write down her thoughts more easily than to speak them Questions 1. Based upon the patient's symptoms, which cerebral artery was blocked? 2. Why was she paralyzed in the right face and arm? 3. What is the name of her language disorder, and what caused it? 4. Was this woman's dominant or nondominant hemisphere damaged?

Explanation / Answer

1.The middle cerebral artery is blocked and when blocked the blood supply to cerebrum is blocked resulting in the conditions seen in the women.

2.She was paralysed in the right face and arm because the face and arm region of her left primary motor cortex that lies anteriorly to the central sulcus (present posteriorly to the frontal lobe) is damaged.

3.The name of laguage disorder is known as Broca's (expressive ) aphasia.A stroke of the dominant parietal lobe or the dominant temporal lobe leads to aphasia.In the dominant hemisphere is present the  Broca’s area and the Wernicke’s area that control language function.The Broca’s area helps in fluent speech production while the Wernicke’s area allows us to understand the meaning of the language that we are able to speak and hear.In this case broca's area is affected.

4.The women's dominant hemisphere is damaged because it is the dominant hemisphere that controls language and since the women cannot answer questions, her dominant hemisphere is damaged. Non dominant hemisphere is associated with visual spatial perception.

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