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Histología > Músculo > Flashcards

Músculo Flashcards

1
Q

Tipos de musculo

A

Esqueletico
Cardiaco
Liso

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2
Q

Presentan patron lineal dado por fibras cilindricas

Fibras mas gruesas que no se bifurcan

Nucleos en la periferia

A

Musculo Esqueletico

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3
Q

Patron arremolinado

Nucleos se ven como si siguieran una continuidad, estan mas ordenados

No presentan estriaciones

A

Musculo Liso

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4
Q

Patron lineal mas delgado y con ramificaciones

Estriaciones menos notorias

Nucleos grandes, ovales y claros, se ubican cerca de la bifurcacion

Presentan discos intercalares

A

Musculo Cardiaco

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5
Q

Recubrimientos del musculo esquelético

A

Tendon
Fascia
Epimisio
Perimisio
Fasciculo
Endomisio
FIbra muscular

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6
Q

Fibras de contraccion lenta que no se fatigan con facilidad

Mantienen tono muscular

A

Fibras rojas de tipo I

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7
Q

Fibras intermedias en musculo esqueletico

A

Fibras tipo IIa

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8
Q

Fibras rapidas y fatigables

A

FIbras blancas de tipo IIb

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9
Q

Proteinas en la banda A del sarcomero

A

Miosina
Actina

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10
Q

Proteina en banda I del sarcomero

A

Actina

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11
Q

Proteina de banda H del sarcomero

A

Miosina

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12
Q

El mecanismo contractil depende de 4 proteina principales:

A

Miosina
Actina
Tropomiosina
Tropinina

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13
Q

Por que cosa estan unidas las fibras del corazon?

A

Por discos intercalares

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14
Q

Que permiten los cuerpos densos del musculo liso?

A

Contraccion en forma de acordeon

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15
Q

Que hace la caveola en musculo liso?

A

Permite paso de calcio

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16
Q

Diagnostico de niño con debilidad muscular, pseudohipertrofia de chamorros (musculos sustituido por tejido adiposo)

A

Distrofia muscular de Duchene ligado a cromosoma X

17
Q

Inmunohistoquimica de la distrofia muscular de Duchene

A

No se pinta de café

Si esta sano el niño, si

18
Q

Autosomica recesiva en mujeres

A

Distrofia muscular de Becker

19
Q

En musculo estriado, que es lo que le da la caracteristica estriada?

A

Sarcomero

20
Q

Funcion de los discos intercalares

A

Direccionar mejor los estimulos electricos

21
Q

Disponen del citoplasma de manera especifica para que al momento de la contraccion trabajen todos juntos

A

Celulas fusiformes en musculo liso

Histología (15 decks)

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