前庭系統
VESTIBULAR DISORDERS & OTONEUROLOGICAL EXAMINATION
I. Introduction
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1. Anatomy
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Bony Labyrinth Model - Vestibule 這段視頻，𪆒明人體解剖學在莫德斯托大專學生學習我們解剖模型。
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Bony Labyrinth Model - Semicircular Canals 這段視頻，𪆒明人體解剖學在莫德斯托大專學生學習我們解剖模型。
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Bony Labyrinth Model - Cochlea 這段視頻，𪆒明人體解剖學在莫德斯托大專學生學習我們解剖模型
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1) Classification of peripheral & central vestibular systems:
peripheral vestibular: Vestibule & semicircular
canals & first sensory neuron
Central vestibular: Rhombencephalic neuclei,their axon & central projection
2) Two sensory vestibular receptors:Crista & macula
(1)Semicircular canals: Crista ampull瓸ris (covered by the cupuLa----a gelatinous mass)
(2)Utricle & scaccule: Macula (covered
by otolithic membrane-—— small prisms of calcium carboaate)
——The macui1a sacculi is hook-snaped and lies in a vertical plane, and macula
utiriculi is irregular
oval-shaped and lies in a horizontal plane.
(3)Hair cells of vestibular receptors:
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這段視頻介紹了如何毛細胞工作，以𪆒明我們聽到的聲音。這段視頻是從：基本細胞生物學，第 3 版
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Type I hair cell: Shaped Greek wine bottles
is correspond to the internal hair cells of the organ of Corti.
lype II hair cell: Shaped cylindrical is correspond to the 93,hair cells of
the organ of Corti.
(4) Types of cilia of the hair cells: Each
hair cell has kinocilium that located on edge of hair cell
(thicker than streocilium) and many streocilia.
a. In the crista ampullaris or lateral aeicircular
canaj. the kinociliuz is close to utricle,
but in the posterior and superior semicircular canals it located distant to
utricle.
b, In the macula utricle the kinocilia all tend
to point toward a line running across
the macula's approximate center, called the lines. alba. In the saccle,
the kinocilia point away from the linea alba.
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2.Membranous labyrinth A.Cochear duct ( scala media ) 3.Acoustic nerve a.Cochlear segment. |
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Cochlea Model
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3)Blood circulation of inner ear:
| Basilar A.→ | Ant. inf. cerebellar A.(80%) | |||
