Question

which cranial nerve would the nurse suspect is affected when a client reports buzzing int he ear for the past 5 days and a decreased ability to hear

Answer 1

When a client complains of buzzing in the ear for the past five days and a decline in hearing, the nurse would assume that CN VIII is affected.

What are the cranial nerves?

Many cranial nerves provide electrical messages from your brain to various regions of your neck, head, and torso. These cues support your ability to move your facial muscles, taste, hear, and smell. The cranial nerves begin at the back of your brain. They are crucial to the functioning of your neural system. The longest cranial nerve is the vagus nerve. The vagus nerve controls both motor and sensory processes. It passes through many areas of your body, including your heart, throat, digestive system, and tongue.

What are the types of cranial nerves?

Each of your 12 cranial nerves performs a distinct job. The number and function of the cranial nerves are classified by experts as follows:

1st Olfactory Nerve: Smell.

2-Optic nerve: Visual perception.

3-Oculomotor nerve: Eye movement and blinking capabilities.

4. Ability to shift your eyes forward and backward thanks to the fourth trochlear nerve.

5-Trigeminal nerve: Taste, facial and cheek sensations, and jaw movement.

6-Abducens nerve: Eye movement ability.

7-Facial nerve: Taste and facial expressions.

8-Auditory/vestibular nerve: Balance and sense of hearing.

9-Glossopharyngeal nerve: Taste and swallowing abilities.

10. Vagus nerve: Heart rate and digestion.

11. Shoulder and neck muscle action is caused by the 11th accessory nerve (or spinal accessory nerve).

12. Hypoglossal nerve: Tongue movement ability.

Briefing:

The vestibulocochlear nerve, or CN VIII, is a component of the central auditory system. Aminoglycosides are an example of a medication that can damage CN VIII and induce hearing loss, tinnitus (an ear buzz), and vertigo. The oculomotor nerve (CN III) that supplies the iris sphincter muscle. This muscle aids in dilating the pupils. The iris dilator muscle, which is responsible for dilating the pupil, is innervated by the trigeminal nerve, or CN V. The facial nerve, also known as CN VII, controls the muscles that open and close the eyelids.

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