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Nervous System - cranial nerve, fatigue, muscle atrophy, toxins

A man in his early 70s was having problems chewing his food. He was asked to stick out his tongue. It deviated to the right, and its right side was quite wasted. What cranial nerve was impaired?

Bob a couch potato likes to eat a very large meal in the evening. After the meal, his wife asks him to help clean the dishes, but Bob explains that he is too tired and promptly goes to sleep. What seems to be his problem?

In Jim's checkup one year after an accident severed his right accessory nerve, severe muscle atrophy was noted. What two prominent muscles have been affected?

Why does exposure toxins have more devastated neural effects during early pregnancy than in late pregnancy?

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A man in his early 70s was having problems chewing his food. He was asked to stick out his tongue. It deviated to the right, and its right side was quite wasted. What cranial nerve was impaired?

Response: The motor portion of the hypoglossal (XII) nerves originates in the medulla and passes through the hypoglossal canal. These two nerves convey nerve impulses that involve tongue movement. Therefore, we would surmise that his right hypoglossal nerve was impaired.

This information is pretty common. You don't need a weblink for this as your anatomy & physiology textbook will contain the information.

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Bob a couch potato likes to eat a very large meal in the evening. After the meal, his wife asks him to help clean the dishes, but Bob explains that he is too tired and promptly goes to sleep. What seems to be his problem? ...

Solution Summary

Various questions regarding the nervous system are addressed.

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