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Ch. 15 The Special Senses
Amerman- Human Anatomy & Physiology 3e
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Amerman 3rd EditionCh. 15 The Special Senses문제 16
15장, 문제 16

The macula in the utricle detects:
a. Rotation of the head to the right
b. Very low-frequency sound waves that we can feel but not hear
c. Tilting of the head to one side
d. Linear acceleration of the head in a vertical plane

검증된 단계별 안내
1
Understand the anatomy of the macula: The macula is a sensory structure located in the utricle and saccule of the vestibular system within the inner ear. It contains hair cells embedded in a gelatinous layer with otoliths (calcium carbonate crystals) on top.
Review the function of the utricle: The utricle is primarily responsible for detecting linear acceleration and head position changes in the horizontal plane, such as forward and backward movements or tilting of the head.
Differentiate between the utricle and saccule: While the utricle detects linear acceleration in the horizontal plane, the saccule detects linear acceleration in the vertical plane, such as movements up and down.
Analyze the options provided: Rotation of the head (option a) is detected by the semicircular canals, not the macula. Very low-frequency sound waves (option b) are related to the cochlea, not the vestibular system. Tilting of the head (option c) is detected by the macula in the utricle, but specifically in the horizontal plane. Linear acceleration in the vertical plane (option d) is detected by the macula in the saccule, not the utricle.
Conclude based on the anatomy and physiology of the vestibular system: The macula in the utricle detects tilting of the head to one side and linear acceleration in the horizontal plane, not vertical plane movements or sound waves.

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주요 개념

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

Utricle Function

The utricle is a part of the vestibular system located in the inner ear, responsible for detecting linear accelerations and head tilts. It contains sensory hair cells embedded in a gelatinous structure called the otolithic membrane, which responds to gravitational forces and changes in head position.
추천 영상:
가이드 코스
06:04
Functional Groups

Linear Acceleration

Linear acceleration refers to the rate of change of velocity in a straight line. In the context of the utricle, it specifically relates to how the head moves in a vertical or horizontal plane, allowing the body to maintain balance and spatial orientation.
추천 영상:
가이드 코스
03:33
Origin of Replication

Vestibular System

The vestibular system is a sensory system that contributes to balance and spatial orientation. It includes structures such as the utricle, saccule, and semicircular canals, which work together to detect motion, head position, and changes in equilibrium, providing critical information for coordination and balance.
추천 영상:
가이드 코스
4:25
Complement System
관련 실천
교과서 질문

The spiral organ sits on the ________ membrane, and the stereocilia of the outer hair cells contact the _____ membrane.

1085
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교과서 질문

How do the hair cells of the crista ampullaris detect rotation of the head?

984
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교과서 질문

Mark True or false

Hair cells in the spiral organ will depolarize or hyperpolarize, depending on the direction in which the stereocilia are bent.

804
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교과서 질문

Which of the following is not part of the auditory pathway in the CNS?

a. Superior temporal lobe

b. Superior colliculus

c. Medial geniculate nucleus

d. Nuclei in the pons

e. Cochlear nuclei

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교과서 질문

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

The spiral organ is located in the scala tympani.

898
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교과서 질문

Explain how sounds of different frequencies are detected in the cochlea.

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