Question

How do we test to make sure the hypoglossal nerve is working?

1) Observe the movement of the tongue
2) Test the strength of the tongue muscles
3) Check for any difficulty in swallowing
4) Perform a nerve conduction study

Answer 1

To test the function of the hypoglossal nerve, you can observe the movement of the tongue, test the strength of the tongue muscles, check for difficulty in swallowing, and perform a nerve conduction study.The correct option is 3.

Step-by-step explanation:

The hypoglossal nerve controls the muscles of the tongue, and there are several ways to test its function.

1. Observe the movement of the tongue: While examining the oral cavity, the movement of the tongue can indicate if the hypoglossal nerve is impaired. If the nerves on both sides are working properly, then the tongue will stick straight out. If there is a deficit in one side, the tongue will stick out to that side.
2. Test the strength of the tongue muscles: The genioglossus muscle is responsible for protrusion of the tongue. Testing the strength of this muscle can help determine if the hypoglossal nerve is functioning correctly.
3. Check for any difficulty in swallowing: Loss of function of the tongue can interfere with swallowing. If a patient experiences difficulty in swallowing, it could be a sign of hypoglossal nerve dysfunction.
4. Perform a nerve conduction study: A nerve conduction study is a medical test that measures the speed and strength of signals traveling through the nerves. It can be used to diagnose hypoglossal nerve problems.