A patient who received a blow to the side of the skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye and the corner of his mouth droops.
Which cranial nerve has been damaged?

The options are

A) facial

B) glossopharyngeal

C) hypoglossal

D) accessory

The answer is A) Facial

Explanation:

The facial cranial nerve is the seventh cranial nerve and is also known as CN VII. The nerve emerges from the pons of the brainstem, and controls the muscles of facial expression such as closing of the eye, mouth, smiling, frowning etc.

It also functions in the carriage of taste sensations.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

explanation:

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