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Ch. 13 The Peripheral Nervous System and Reflex Activity
Marieb - Human Anatomy & Physiology 7th Edition
Marieb, Hoehn7th EditionHuman Anatomy & PhysiologyISBN: 9780805359091당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Marieb, Hoehn 7th EditionCh. 13 The Peripheral Nervous System and Reflex Activity문제 17
13장, 문제 17

The structure that allows pressure in the middle ear to be equalized with atmospheric pressure is the
a. Pinna
b. Pharyngotympanic tube
c. Tympanic membrane
d. Oval window

검증된 단계별 안내
1
Understand the function of each structure listed in the options to identify which one is responsible for equalizing pressure in the middle ear.
Recall that the pinna (option a) is the external part of the ear that collects sound waves but does not regulate pressure.
Recognize that the tympanic membrane (option c), or eardrum, vibrates in response to sound but does not equalize pressure itself.
Know that the oval window (option d) is a membrane-covered opening that transmits vibrations from the middle ear to the inner ear, not involved in pressure equalization.
Identify the pharyngotympanic tube (option b), also called the Eustachian tube, as the structure that connects the middle ear to the nasopharynx and allows air pressure to equalize between the middle ear and the atmosphere.

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이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
2m
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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Pharyngotympanic Tube (Eustachian Tube)

The pharyngotympanic tube connects the middle ear to the nasopharynx and allows air to pass between them. This connection helps equalize the pressure on both sides of the tympanic membrane, ensuring proper vibration and hearing function.
추천 영상:
3:58
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Middle Ear Pressure Regulation

Maintaining equal pressure in the middle ear and the external environment is crucial for the tympanic membrane to vibrate correctly. Pressure imbalances can cause discomfort or hearing issues, which the pharyngotympanic tube helps prevent by ventilating the middle ear.
추천 영상:
6:12
Partial Pressure

Tympanic Membrane Function

The tympanic membrane, or eardrum, vibrates in response to sound waves. Its proper function depends on balanced pressure on both sides, which is achieved through the pharyngotympanic tube, allowing sound transmission to the middle ear bones.
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c. In the optic tracts

d. In the olfactory cortex

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c. The basilar membrane acts as a resonator.

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b. Intensity

c. Overtones

d. All of these

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a. A cause of deafness

b. A type of hearing aid

c. Important in equilibrium

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a. Anterior part of the tongue

b. Posterior part of the tongue

c. Palate

d. All of these

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