The Nurse Is Reviewing the Structures of the Ear

question 35

Multiple Choice

The nurse is reviewing the structures of the ear.Which of these statements concerning the eustachian tube is true?

• A)The eustachian tube is responsible for the production of cerumen.
• B)It remains open except when swallowing or yawning.
• C)The eustachian tube allows passage of air between the middle and outer ear.
• D)It helps equalize air pressure on both sides of the tympanic membrane.

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Definitions:

Electrical Activity

The movement of electrical charges or currents, often referring to such phenomena in the nervous system or the heart.

Peak Flow Rate

A measure of how quickly air can be expelled from the lungs, used to monitor breathing conditions like asthma.

Asthma

A condition in which the tubes of the bronchial tree become obstructed due to inflammation.

Breathing Capacity

The maximum volume of air that the lungs can hold or the total amount of air one can inhale and exhale.