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HISTOLOGÍA > The Eye & Ear: Special Sense Organs > Flashcards

The Eye & Ear: Special Sense Organs Flashcards

1
Q

Es la porción mas anterior de esclera

A

Cornea

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2
Q

Es el elemento retráctil mas importante del ojo

A

Cornea

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3
Q

Transparente, por fuera esta revestida por un epitelio plano muy desarrollado llamado lamina de Bowman

A

Cornea

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4
Q

Detrás de la lamina de Bowman se encuetra

A

Estroma corneal que es un tejido conectivo denso, avascular, con escasos fibroblastos

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5
Q

Segunda lamina basal de la cornea, que sirve de sostén a un epitelio plano simple que limita internamente a la cornea

A

Lamina de Descemet

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6
Q

Cámara anterior que se encuetra detrás de la cornea esta lleno de

A

Humor acuoso

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7
Q

El humor acuoso es producido por

A

Procesos ciliares

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8
Q

Es la capa que limita la cámara anterior por detrás y circunferencialmente

A

Iris

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9
Q

Aquí se encuentran las estructuras que continuamente drenan el humor acuoso y son indispensables para su recambio , con función de diafragma con el que regula la entrada de luz

A

Angulo camerular

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10
Q

Centro del iris, es un circulo cavio que forma

A

La pupila

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11
Q

Tres capas que se distinguen en el ojo de afuera hacia dentro

A

Esclera
Uvea
Retina

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12
Q

La cámara posterior esta limitada por

A

El iris, procesos ciliares, el cristalino, y el humor vitreo

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13
Q

Lente biconcava que enfoca la imagen en la retina, estructura transparente que aumenta o disminuye el espesor de su Ecuador según la imagen este más próxima o mas distal

A

Cristalino

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14
Q

Anteriormente el cristalino tiene una cápsula epitelial

A

Cubica o plana simple

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15
Q

Los niños acomodan el cristalino correctamente hasta

A

2 o 3 meses de edad

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16
Q

Llena la cavidad situada entre el cristalino y la retina, es trasparente gelatinoso, con algunas fibras de colagena y sus celulas se llaman hialocitos

A

Humor vitreo

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17
Q

Capa fotoreceptora del ojo

A

Retina

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18
Q

Capas de la retina de fuera hacia dentro

A 
Epitelio pigmentado
Fotoreceptores
Membrana limitante externa
Nuclear externa
Plexiforme externa
Nuclear interna
Plexiforme interna
Celulas ganglionares 
Fibras del nervio óptico 
Membrana limitante interna
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19
Q

Formada por conos y bastones

A

Fotoreceptores

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20
Q

Capa de color negro que impide que la luz se refleje

A

Epitelio pigmentado

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21
Q

Nucleos de los fotoreceptores

A

Nuclear externa

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22
Q

Son los nucleos de las neuronas bipolares que comunican los fotoreceptores con las neuronas ganglionares

A

Nuclear interna

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23
Q

Son las células que sensan los colores, útiles para la visión precisa concentradas en la fovea del ojo contienen pigmentos de rodopsina

A

Bastones

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24
Q

Pigmento de los conos especificos para los colores rojo,verde, y azul

A

Yodopsina

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25
Q

Los segmentos externos de sus discos se encuentran unidos con la membrana plasmatica

A

Conos

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26
Q

Su alta sensibilidad es debido a que presentan múltiples sinapsis (convergencia) , son para visión nocturna, no perciben el color, más abundantes que los conos

A

Bastones

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27
Q

Son sensibles a un simple fotón y su señal se traduce en visión blanco y negro

A

Bastones

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28
Q

External fibrous layer of eye consist in

A

Sclera

Cornea

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29
Q

Vascular layer of the eye consist in

A

Choroid
Ciliary body
Iris

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30
Q

Inner sensory layer of eyes

A

Retina which communicates with cerebrum through optic nerve

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31
Q

The lens held in place by a circular system of zonular fibers that attach it to the

A

Ciliary body

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32
Q

Partly covering the anterior surface of the lens is an opaque pigmented extension of the middle layer called

A

Iris

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33
Q

The anterior chamber is between

A

Cornea and iris

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34
Q

Posterior chamber is between

A

Iris and lens

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35
Q

The posterior vitreous chamber surrounded by the retina lies behind the lens and its zonular fibers contains a large gelatinous mass of transparent CT called

A

Vitreous body

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36
Q

Week when ebryo epithelial optic vesicles bulge bilatery from the forebrain (prosencephalon) , then elongate as the optic stalks bearing optic cup

A

4 week

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37
Q

Late week 4 a structure forms inner and outer layers, lens pit forms lense vesicles

A

Optic cup

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38
Q

Grow along the optic stalk, enter the optic cup and grow toward the developing lens

A

Hyaloid vessels

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39
Q

Differntiates as the retina and form the corneal epithelium

A

Ectoderm

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40
Q

The white posterior 5/6 of the layer is .. which enclose about 22mm in diameter in adults

A

Slcera

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41
Q

The sclera average in thickness is…, dense connective tissue and type I collagen

A

0.5 mm

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42
Q

Insert in the anterior region of the sclera

A

Extra ocular muscle

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43
Q

When sclera surround the choroid it includes an inner… ,with less collagen, more fibroblast, elastic fibers and melanocytes

A

Suprachoid lamina

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44
Q

Anterior 1/6 of the eye, transparent and avascular with an average of .9-1.2 mm

A

Cornea

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45
Q

Five layers of cornea

A

Stratified squamous epithelium (external) nonkeratenized
Anterior limiting membrane (bowman membrane)
Stroma
Posterior limiting membrane (descemet membrane)
Endothelium

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46
Q

The stratified squamous nonkeratenized epithelium have five or six layers thick comprise 10% of the corneal thickness with high proliferative capacity and emerge from stem cells in the

A

Corneoscleral limbus

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47
Q

The basement membrane of the epithelium is very thick and contributes to the stability and strength of the cornea helping to protect agains infection

A

Bowmans membrane

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48
Q

Stroma or substantia propia makes up .., consist of 60 layers of parallel collagen

A

90% of corneas thickness

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49
Q

Between the collagen lamellae are cytoplasmatic extension of cells called

A

Keratocytes

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50
Q

Helps maintain the precise organization and spacing of collagen fibrils

A

Proteoglycan
Lumicans
Keratan sulfate
Chondroitin sulfate

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51
Q

The posterior surface of the stroma is bounded by …, includes the most metabolically active cells of the cornea Na /K ATPase pumps are responsible for regulating the proper hydratation state to provide transparency

A

Descemet membrane

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52
Q

Where cornea merge sclera

A

Limbus

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53
Q

The stroma becomes at limbus…. , and descemet membrane are replace by

A

Vascular and less well organized

Trabecular meshworks

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54
Q

Bowmans membrane ends and epithelium becomes more stratified an the

A

Conjuntiva

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55
Q

Trabecular meshwork penetrates the stroma at the corneoscleral junction and allow continuous drainage of aqueous humor moving from these channels into the larger space of the

A

Scleral venous sinus or canal of Schlemm

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56
Q

Located in the posterior 2/3 of the eye the choroid consist of

A

Loose, well vascularized connective tissue and melanocytes

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57
Q

Two layers of the choroid

A

Choroido-capillary lamina : rich microvasculature for outer retinal layer
Brunch membrane : a thin extra cellular surrounding microvasculature and basal lamina of retinas pigmented layer

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58
Q

More vascular middle layer

A

Uvea

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59
Q

se presenta cuando la luz que entra al ojo se enfoca de manera incorrecta, haciendo que los objetos distantes aparezcan borrosos, es un tipo de error de refracción del ojo.

A

Miopia

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60
Q

Anomalía o defecto del ojo que consiste en una curvatura irregular de la córnea, lo que provoca que se vean algo deformadas las imágenes y poco claro el contorno de las cosas.

A

Astigmatismo

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61
Q

imperfection in the eye (often when the eyeball is too short or the lens cannot become round enough), causing difficulty focusing on near objects

A

Hyperopia

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62
Q

Anterior expansion of the uvea that encircles the lens lies posterior to the limbus

A

Ciliary body

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63
Q

Makes up must of the ciliary body’s stroma, three groups of smooth muscle , contraction of these muscle affects the shape of lens and is important in accomodation

A

Ciliary muscle

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64
Q

Arrange of about 75 ridges extending from the inner highly vascular region of ciliary body covered by double layer of low columnar epithelial cells, directly covering the stroma contain much melanin, the surface layer of cells lack of melanin and is continuous with sensory layer of the retina

A

Ciliary process

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65
Q

Aqueous humor is produced by ciliary processes into the posterior chamber and flows to the anterior chamber through

A

Pupil

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66
Q

Is a system of many radially oriented fibers composed of fibrilin 1 & 2 produced by

A

Nonpigmented epithelial cells on the ciliary process

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67
Q

Consist of dense layer of fibroblast and melanocytes with interdigitating process with lack epithelial covering

A

Iris

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68
Q

The posterior surface of the iris has two layered epithelium continuous with that covering the ciliary process, heavily filled with

A

Melanin

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69
Q

Form a partially pigmented epithelial layer and extend contractile process as the dilatator pupillae muscle

A

Myoepithelial cells

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70
Q

Smooth muscle fibers form a circular bundle near the pupil as the

A

Sphinter pupillae muscle

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71
Q

The lens three components

A

Lense capsule
Lens epithelium
Lens fibers

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72
Q

Composed of proteoglycan and type IVcollagen surrounds the lens, and provides the place of attachment for the fibers of the ciliary zonular

A

Lense capsule

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73
Q

Single layer of cuboidal cells present only in anterior surface of the lens attach basally to the lens capsule and their apical surface bind the internal lens fibers, at the posterior edge near the equator of the lens divide and provide new cells that differnciate as lens fibers

A

Lens epithelium

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74
Q

Are highly enlongated appear as thin flattened structures with the cytoplasm becomes filled with a group of proteins called crystallins it’s specialist for light refraction

A

Lens fibers

75
Q

The lens is held in place by fibers of the …., which extend from the lens capsule to the ciliary body

A

Ciliary zonules

76
Q

When the eye is at rest, for distant vision ciliary muscles

A

Relax and the resulting shape of ciliary body puts tension on the zonule fibers, which pulls the lens into a flatter shape

77
Q

Es una afección en la cual el cristalino del ojo pierde su capacidad para enfocar. Esto dificulta el hecho de ver objetos cercanos.

A

Presbyopia

78
Q

To Focus on a close object the ciliary muscle fibers

A

Contract changing the shape of the ciliary body relaxing tension of the ciliary zonule allow to assume the more rounded shape

79
Q

Occupies the large vitreous chamber behind the lens

A

Vitreous body

80
Q

Percentage of connective tissue of vitreous body that represent water

A

99%

81
Q

The only cells in the vitreous body are

A

Hyalocytes which synthesize the hyaluronate and collagen

82
Q

Two fundamental sublayers from the inner and outer layers of ebryonic optic cup

A

Pigmented layer

Neural layer

83
Q

Simple cuboidal epithelium of a outer sublayer of retina attached to Brunch membrane and the choroidocapillary lamina of the choroid, forms the other part of the dual epithelium covering the ciliary body and posterior iris

A

Pigmented layer

84
Q

Inner retina region, is thick and stratified with various neurons and photoreceptors, extend anterior only as far as the ora serrata, this layer continue as part of the dual cuboidal epithelium that covers the surface of the ciliary body and posterior iris

A

Neural layer

85
Q

The two layers (pigmented and neural)of the optic cup are not firmly joined to each other, head trauma or other conditions can cause the two layers separate

A

Detached retina

86
Q

The pigmented epithelial layer consist of

A

Cuboidal or low columnar cells, well develop juntional complex, , numerous melanin granules and abundant SER

87
Q

Function of retinal pigmented epithelium

A 
Absorb scattered light 
Part of the protective blood retina barrier regulating ion transport of choroid
Retinal regeneration (vitamin A)
Phagocytosis 
Remove free radical
88
Q

Is comprise by nine distinct layers, functions as an outpost of the CNS with glia and interconnected neuronal subtypes

A

Neural retina

89
Q

Three major layers that contain the nuclei of the interconnected neurons

A

Outer nuclear layer
Inner nuclear layer
Ganglionic layer

90
Q

Contains cell bodies of photoreceptors (rod & cones) near the pigmented epithelium

A 
Pigmented layer
Rod & cones layer
Outer limiting layer😉
Outer nuclear layer
Outer plexiform layer
Inner nuclear layer
Inner plexiform layer 
Ganglionic layer
Nerve fiber layer
Inner limiting layer
91
Q

Contains the nuclei of various neurons, notably the bipolar cells, amacrine cells, and horizontal cells, all which Make specific connection with other neurons and integrate signal from redes and cones

A 
Pigmented layer
Rod & cones layer
Outer limiting layer
Outer nuclear layer
Outer plexiform layer
Inner nuclear layer😁
Inner plexiform layer 
Ganglionic layer
Nerve fiber layer
Inner limiting layer
92
Q

Near the vitreous has neurons with much longer axons, this axons Make up the nerve fiber layer and converge to form the optic nerve , is thickest near the central macular region of the retina but is thin peripherally to only One layer

A 
Pigmented layer
Rod & cones layer
Outer limiting layer
Outer nuclear layer
Outer plexiform layer
Inner nuclear layer
Inner plexiform layer 
Ganglionic layer 😁
Nerve fiber layer
Inner limiting layer
93
Q

Two fibrous regions contain only axons and dendrites connected by synapses

A

Outer plexiform layer

Inner plexiform layer

94
Q

Include axons of the photoreceptors and dendrites of association neurons in the INL

A 
Pigmented layer
Rod & cones layer
Outer limiting layer
Outer nuclear layer
Outer plexiform layer😊
Inner nuclear layer
Inner plexiform layer 
Ganglionic layer
Nerve fiber layer
Inner limiting layer
95
Q

Consist of axons and dendrites connecting neurons of the INL with ganglionic cells

A 
Pigmented layer
Rod & cones layer
Outer limiting layer
Outer nuclear layer
Outer plexiform layer
Inner nuclear layer
Inner plexiform layer 😝
Ganglionic layer
Nerve fiber layer
Inner limiting layer
96
Q

All neurons of the retina are supported physically by glial cells called

A

Müller cells

97
Q

Is a faint but well defined series of tight and adherent junction that form at the level of the rod and cone inner segments between the photoreceptors and Müller cell processes

A

Outer limiting layer OLL

98
Q

Consist of terminal expansion of other Müller cell processes that cover the collagenous membrane of the vitreous body

A

Inner limiting layer

99
Q

Average of rod cells in human

A

92 millon

100
Q

Extremely sensitive to light, respond to a single photon, vision nighttime compose by only two functionally distinct segments (inner & outer)

A

Rod cells

101
Q

One of the only two segments of rod cells that is a modified primary cilium

A

Outer segment

102
Q

One of the only two segments of rod cells that has glycogen, mitochondria for the cells biosynthetic activity

A

Inner segment

103
Q

The rod shaped segment consist mainly of….. , flattened membranous discs

A

600 to 1000

104
Q

Proteins on the cytoplasmic surface of each disc in rod cells,which is bleached by light and initiates the visual stimulus called

A

Rhodopsin or visual purple

105
Q

Average of membranous discs that are lost and replaced in each rod each day

A

90

106
Q

Average of cone cells

A

4.6 million

107
Q

Pigment that cones have

A

Iodopsin or photopsin

108
Q

Many key genes for the color sensitivity of cones are one .. Chromosomes

A

X

109
Q

On rod contains about … Rhodopsin molecules

A

Billion

110
Q

Each of these visual pigments contains a transmembrane protein, the opsin, with a small light sensitive chromophore in which the vitamin A derivative called

A

Retinal

111
Q

The blind spot of the retina, lacks photoreceptors and all conducting neurons, it occurs posterior area of the retina where axons in nerve fiver layer converge to produce the optic nerve which leaves the retina, central vein and arterie enter at this point

A

Optic disc

112
Q

Near the optic disc within the portion of the retina directly opposite the pupil a special area of 1.5mm in diameter where visual acuity or sharpness is maximal , with only cone cells at its center, ganglionic cells and other conducting neurons are located in the periphery

A

Fovea centralis

113
Q

Surrounding the fovea centralis with 5mm in diameter , here all layers of the retina are present and to plexiform layers are rich in various carotenoids which gives this area a yellowish color,

A

Macula lutea

114
Q

With GL of the entire retina a subset of ganglion cells serve as

A

Nonvisiual photoreceptors

115
Q

Ganglion cells ,These neurons contain 11-cis retinal bound to the protein …., and serve to detect changes in light quantity and quality during each 24 hour dawn/dusk cycle

A

Melanopsin

116
Q

Ganglion cells pass via axons of retinohypothalamic tract to

A

The suprachiasmatic nuclei and the pineal gland, where help establish the body’s physiologic circadian rhythm

117
Q

Is a thin transparent mucosa that covers the exposed, anterior portion of the sclera and continue as the lining of the inner surface of the eyelids with stratified columnar epithelium with numerous goblet cells supported by a thin connective tissue

A

Conjuntiva

118
Q

Conjunctiva epithelium

A

Stratified columnar

119
Q

Condition in which the conjunctiva is inflamed usually due to bacterial or viral infection or to allergies increase the discharge of mucus and enlarge the microvasculature of sclera causing red appearance

A

Conjunctivitis or pink eyes

120
Q

Are pliable structure containing skin, muscle, and conjunctiva that protect the eyes, the skin is loose and elastic, lack fat, and very small hair follicles and fine hair, except at the distal edge where large follicles of eyelashes with associated sebaceous glands and modified apocrine sweat glands,

A

Eyelids

121
Q

In eyelids beneath the skin are

A

Striated fascicles of the orbicularis oculi and lavator palpebrae muscles that fold the eyelids

122
Q

Adjacent to the conjunctiva is a dense fibroelastic plated called… , that support the other tissue

A

Tarsus

123
Q

Quantity of sebaceous glands that is surrounded by tarsus, with many acini secreting into a long central duct that opens among the eyelashes

A

20-25

124
Q

Oils in the sebum produce by these tarsal glands also called…, form a surface layer on the tear film reducing its rate of evaporation and help lubricate the ocular surface

A

Meibomian glands

125
Q

Infections near an opening of the tarsal glands ducts, generally caused by Staphylococcus aureus, are called

A

Styes

126
Q

Produce fluid continuously for the tear film that moistens and lubricates the cornea and conjunctiva and supplies O2 to the corneal epithelial cells

A

Lacrimal glands

127
Q

Tear fluid contains

A

Metabolites
Electrolytes
Proteins of immunity such as lysozyme

128
Q

The main lacrimal glands are located in

A

The upper temporal portion of the orbit and have several lobes

129
Q

The lacrimal glands drain through

A

Individual excretory ducts into the superior fornix, the conjunctiva lined recess between the eyelids and the eye

130
Q

The lacrimal glands have acini composed is surrounded by

A

Myoepithelial cells and a sparse vascular stroma

131
Q

Tears film moves across the ocular surface and collect in

A

Other parts of the bilateral lacrimal apparatus

132
Q

Lacrimal apparatus consist

A

Flowing through two small rounding opening(0.5 mm diameter) to canaliculi at the medial margins of the upper and lower eyelids , then passing into lacrimal sac, and finally drain into nasal cavity via nasolacrimal duct

133
Q

The canaliculi of the lacrimal apparatus is lined by

A

Stratified squamous epithelium

134
Q

Distal sac and duct of the lacrimal apparatus is lined by

A

Pseudostratified ciliated epithelium

135
Q

Tres partes del oído

A

Oído externo
Oído medio
Oído interno

136
Q

Conduce ondas sonoras hacia la membrana timpanica, lleno de aire y se comunica con el interior del cuerpo

A

Oído externo

137
Q

La auricula o pabellón auricular está formado por

A

Cartílago elástico

138
Q

Posse partes óseas y cartilaginosas y glandulas ceruminosas

A

Meato auditivo externo

139
Q

La membrana timpanica esta cubierta por

A

Externamente piel delgada e internamente por epilelio plano simple

140
Q

Transmite las vibraciones que percibe la membrana al oído interno

A

Oído medio

141
Q

El oído medio se comunica con la nasofaringe a través de

A

Trompa de eustaquio

142
Q

La cavidad timpanica esta revestida por

A

Epitelio cúbico simple

143
Q

Huesecillos del oído medio

A

Martillo, yunque y estribo

144
Q

Su base transmite las vibraciones por una perforación llamada ventana oval o vestibular

A

Estribo

145
Q

Dos funciones del oído interno

A

Audición y equilibrio

146
Q

La función auditiva del oído interno es llevada acabo por

A

Coclea

147
Q

La función de equilibrio esta dada por

A

Vestíbulo

148
Q

Se halla dentro del laberinto oseo , llena de liquido llamado perilinfa, dentro del cual esta el laberinto membranoso que contiene la endolinfa

A

Colcea

149
Q

El canal espiral coclear contiene …., que está lleno de endolinfa

A

Conducto colear

150
Q

Está localizado en el conducto coclear

A

Órgano de Corti

151
Q

El conducto coclear se encuentra en

A

La rampa media

152
Q

La rampa vestibular esta llena de

A

Perilinfa

153
Q

La membrana vestibular o techo del conducto coclear tiene dos capas de epitelio

A

Plano o cúbico

154
Q

Es el limite caudal del órgano de Corti, piso del conducto coclear

A

Membrana bacilar

155
Q

Embebidos en la membrana rectoría y responden a la oscilación resonante de la membrana basilar

A

Celulas ciliares con estereocilio

156
Q

Los receptores vestibulares se hallan dentro del

A

Laberinto membranoso

157
Q

Which receives sound waves

A

External ear

158
Q

Is an irregular funnel shape plate of elastic cartilage covered by tightly adherent skin,

A

Auricle or pinna

159
Q

Sounds waves enter here and is a canal lined with stratified squamous epithelium that extends from auricle to the middle ear

A

External Acustic meatus

160
Q

Found near its opening sebaceous gland that are modified apocrine sweat glands call

A

Ceremonious glands

161
Q

Wall of the external auditory meatus in the outer third is supported by

A

Elastic cartilage

162
Q

Membrane of fibroelastic connective tissue covered with epidermis and internally by a simple cuboidal epithelium of the mucosa that lines the middle ear cavity

A

Tympanic membrane or eardrum

163
Q

Middle ear communicate with the pharynx via

A

Auditory tube or Eustachian or pharyngotympanic tube

164
Q

In the middle ear which epithelium epithelium help lining the cavity rest in lamina propria continues with periosteum

A

Simple cuboidal

165
Q

Epithelium of the auditory tube

A

Ciliated pseudo stratified columnar

166
Q

Help balance the air pressure in the middle ear

A

Eustachian tube

167
Q

Middle ear contains

A

Tympanic cavity

168
Q

In the medial bone wall of the middle ear are two small membrane covered regions devoid of bone

A

Oval and round window

169
Q

The three ossicles named

A

Malleus, incus, stapes

170
Q

The auditory ossicles which along with periosteum are completely covered by

A

Simple squamous

171
Q

Restrict ossicle movement and protect the oval window and inner ear from potential damage cause by loud sound

A

Skeletal muscle the tensor tympani and stapedium

172
Q

Inflammation of middle ear caused by viral or bacterial infections extended from the upper respiratory tract via the auditory tubes

A

Otitis media

173
Q

The membranous labyrinth is derived from

A

Ectodermal vesicles , the otic vesicle which invaginate into subjacent mesenchyme during fourth week

174
Q

The otic vesicle or otocyst forms the membranous labyrinth with division are

A

Utricle and saccule
Three semicircular ducts continuous with the utricle
cochlear duct

175
Q

Function of inner ear have in the epithelium lining large areas with columnar mechanoreptor cell called

A

Hair cells

176
Q

Specialized sensory regions

A

2 Maculae of the utricle and saccule
3 Cristae ampullares in the enlarged ampullary regions of each semicircular duct
Spiral organ of Corti in cochlear duct

177
Q

Bony labyrinth includes

A

Vestibule houses the saccule and utricle
Behind vestibule three osseous semicircular canals
Coclea

178
Q

The cochlea contains cochlear duct, is about 35mm long and makes …. Turn around a bony core called the modiolus

A

2 3/4

179
Q

Detect linear movement and stratic position of the head, with Maculae receptors and his membranous labyrinth component is utricle and saccule

A

Vestibule

180
Q

Detect rotational movements of the head with cristae ampullares receptors and membranous component are semicircular ducts

A

Semicircular canals

181
Q

Sensory receptor is organ of Corti, detect sounds

A

Cochlear duct

182
Q

The modiolus contains

A

Blood vessels and surround the cell bodies and processes of the acoustic branch of the 8 cranial nerve in the large spiral or cochlear ganglion

183
Q

Fills the region of the bony labyrinth with similar ionic composition similar from LCR with little proteins, suspends and support the membranous labyrinth, emerge from the microvasculature of the periosteum draining in subarachnoid space via perilymphatic duct

A

Perilymph

184
Q

Fill the membranous labyrinth with high K (150mM) and low Na(16 mM), similar to intracellular fluid, produced in in the wall of the cochlear duct draining into venous sinuses of dura mater

A

Endolymph

HISTOLOGÍA (21 decks)

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