Which of the following correctly describes the process of hearing?

Choice A rationale

A black pressure ulcer indicates necrotic tissue, which often requires surgical debridement.

Choice B rationale

Increased drainage from the wound is not typically associated with a black pressure ulcer.

Choice C rationale

While documenting the wound status daily is part of wound care, it is not a specific event anticipated when planning care for a patient with a black pressure ulcer.

Choice D rationale

Increased monitoring of the wound condition is part of wound care, but it is not a specific event anticipated when planning care for a patient with a black pressure ulcer.

Choice A rationale

Vibration of the eardrum is not directly transmitted to the eighth cranial nerve, bypassing the inner ear structures. The vibrations from the eardrum are first transmitted through the ossicles (tiny bones in the middle ear) to the cochlea in the inner ear.

Choice B rationale

Sound waves enter the ear canal, but they are not directly converted to electrical impulses. The sound waves cause the eardrum to vibrate, and these vibrations are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.

Choice C rationale

Vibration of the eardrum transmits through the bony ossicles to the perilymph in the inner ear, stimulating the eighth cranial nerve. This is the correct description of the process of hearing.

Choice D rationale

Sound is not transmitted directly from the eardrum to the brain. The sound-induced vibrations of the eardrum are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.