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Ch. 15 The Special Senses
Marieb - Human Anatomy & Physiology 11th Edition
Marieb, Hoehn11th EditionHuman Anatomy & PhysiologyISBN: 9780136874034당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Marieb, Hoehn 11th EditionCh. 15 The Special Senses문제 11
15장, 문제 11

The transmission of sound vibrations through the internal ear occurs chiefly through
(a) nerve fibers
(b) air
(c) fluid
(d) bone.

검증된 단계별 안내
1
Step 1: Understand the anatomy of the internal ear, also known as the cochlea, which is a fluid-filled structure responsible for converting sound vibrations into nerve impulses.
Step 2: Recall that sound vibrations enter the ear and are transmitted through different mediums: initially through air in the outer ear, then through bone in the middle ear, and finally through fluid in the internal ear.
Step 3: Recognize that within the cochlea, the vibrations move through the fluid (perilymph and endolymph), which stimulates hair cells that convert mechanical vibrations into electrical signals.
Step 4: Note that nerve fibers do not transmit the vibrations themselves but carry the electrical signals generated by the hair cells to the brain.
Step 5: Conclude that the chief medium for transmission of sound vibrations through the internal ear is fluid, as it is the fluid movement that activates sensory receptors.

주요 개념

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Transmission of Sound Vibrations

Sound vibrations travel through different mediums before being perceived by the brain. Understanding how these vibrations move through the ear's structures is essential to identify the correct pathway within the internal ear.
추천 영상:
7:54
Sounds in the Cardiac Cycle

Structure and Function of the Internal Ear

The internal ear contains fluid-filled chambers, including the cochlea, where sound vibrations are converted into nerve signals. Recognizing that the internal ear primarily uses fluid to transmit vibrations helps explain how sound is processed internally.
추천 영상:
가이드 코스
06:04
Functional Groups

Mediums of Sound Transmission

Sound can travel through solids, liquids, and gases, but the efficiency and mechanism differ. In the internal ear, fluid is the main medium for transmitting vibrations, unlike air or bone, which are involved in other parts of the auditory system.
추천 영상:
7:54
Sounds in the Cardiac Cycle
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교과서 질문

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

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교과서 질문

Olfactory nerve filaments are found

a. In the optic bulbs

b. Passing through the cribriform plate of the ethmoid bone

c. In the optic tracts

d. In the olfactory cortex

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교과서 질문

Of the neurons in the retina, the axons of which of these form the optic nerve?

a. Bipolar cells

b. Ganglion cells

c. Cone cells

d. Horizontal cells

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교과서 질문

Which of the following statements does not correctly describe the spiral organ?

a. Sounds of high frequency stimulate hair cells at the basal end.

b. The 'hairs' of the receptor cells are embedded in the tectorial membrane.

c. The basilar membrane acts as a resonator.

d. The more numerous outer hair cells are largely responsible for our perception of sound.

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교과서 질문

Otoliths (ear stones) are

a. A cause of deafness

b. A type of hearing aid

c. Important in equilibrium

d. The rock-hard petrous part of the temporal bones

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교과서 질문

Taste buds are found on the

a. Anterior part of the tongue

b. Posterior part of the tongue

c. Palate

d. All of these

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