Neurofisiologia De La Vision Flashcards

1
Q

Propósito de la visión

A

Percibir con los ojos algo mediante la acción de la luz

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2
Q

Anatomía básica del ojo

A

Tunica fibrosa
Tunica vascular

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3
Q

Función de la córnea

A

Refracción de la luz

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4
Q

Función de la esclera

A

Da forma al ojo

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5
Q

Iris

A

Regula la cantidad de luz que entra al ojo

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6
Q

Tunica fibrosa

A

Córnea y esclera

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7
Q

Tunica vascular

A

Iris
Cuerpos ciliares
Coroides

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8
Q

Tunica vascular

A

Iris
Cuerpos ciliares
Coroides

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9
Q

Cuerpos ciliares

A

Secretan humor acuoso y dan formal al cristalino

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10
Q

Coroides

A

Aporte sanguíneo y capa pigmentaría

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11
Q

Humor acuoso

A

Circula con libertad
Forma y reabsorbe constantemente
Como es variable regula la presión intraocular

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12
Q

Por donde se drena el humor acuoso

A

A través del conducto se schlemm

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13
Q

Humor acuoso consistencia

A

Gelatinoso casi constante agua

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14
Q

Humor vítreo consistencia

A

Colagena y ácido hialuronico

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15
Q

Presión intraocular
Medición

A

10 a 21 mmHg
tonometro

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16
Q

Causa principal de ceguera

A

Glaucoma, daño de las células ganglionares del nervio óptico secundario a hipertensión ocular

17
Q

Cristalino

A

Refracción de la luz

18
Q

Retina

A

Convierte estímulos lumínicos en potenciales de acción

19
Q

Retina
Conos y bastones

A

120 millones de bastones
60 millones de conos

20
Q

De que lado está el disco óptico y las venas retinianas

A

Lado nasal

21
Q

De que lado está la mácula y fovea

A

Lado temporal