Sistema muscular Flashcards

1
Q

Funciones del sistema muscular

A

-Movimiento
-mantiene la postura
-produccion de calor
-protege huesos y organos

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2
Q

Clasificacion del sistema muscular

A

-Funcionalidad: voluntario e involuntario
-Estructura: Estriado y liso

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3
Q

Tipos de musculos

A

Esqueletico, liso y cardiaco

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4
Q

Esqueletico

A

Mov. voluntario
Fibras largas y cilindricas
Se fatigan
agonistas (contraido) y antagonistas (relajado)

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5
Q

Liso

A

Mov. involuntario
Fibras delgadas y en forma de huso
Se fatigan lentamente

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6
Q

Cardiaco

A

Mov. involuntario
Fibras ramificadas con uniones celulares
Nucleo central
Una sola de las celulas recibe el impulso y lo transmite al resto.
Nunca se fatiga

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7
Q

Tendones

A

Anclan el musculo firmemente al hueso
Tendon rotulianio y de aquiles

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8
Q

Ligamentos

A

Conectan hueso con hueso en una articulación
Ligamentos cruzados

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9
Q

Bursa

A

Bolsa que contiene fluido de una articulacion

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10
Q

Unión neuromuscular

A
  • El axón de una terminal nerviosa sobre la fibra musc.
  • Hace sinapsis
  • Se libera neurotransmisor (acetilcolina)
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11
Q

Extensor

A

Incrementa el ángulo de la articulación

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12
Q

Flexor

A

Disminuye el ángulo de la articulación

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13
Q

Abductor

A

Aleja la extremidad de la line media

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14
Q

Aductor

A

Acerca la extremidad a la línea media

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15
Q

Unidad funcional del musculo?

A

Sarcomera

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16
Q

Que es la sarcoplasma?

A

Envuelve al nucleo

17
Q

Fibra

A

Conjunto de
sarcoplasmas
el nucleo y endomisio
se forma la fibra

18
Q

Sarcolema

A

Membrana celular
envuelve a la fibra

19
Q

Fasiculo

A

Conjunto de fibras rodeadas de perimisio

20
Q

Musculo

A

Conjunto de fasiculos rodeados por epimisio