Nervios espinales Flashcards

1
Q

Número

A

31 pares bilaterales

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2
Q

Origen

A

Todos se originan de raicillas anteriores y posteriores, que se unen en el surco anterolateral y posterolateral

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3
Q

Las raicillas se unen para formar:

A

-Una única raíz posterior
-Una única raíz anterior

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4
Q

Tienen un ganglio

A

Solamente las raíces posteriores

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5
Q

Todos los nervios hacen sinapsis con

A

Núcleos en la materia gris.
Nervios de la raíz posterior hacen sinapsis con el asta posterior de la materia gris.

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6
Q

La conexión entre ambas raíces puede ser:

A

-Directa
-Indirecta

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7
Q

Fibras dorsales o posteriores

A

Aferentes, ascendentes, sensitivas

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8
Q

Fibras ventrales o anteriores

A

Eferentes, descendentes, ejecutoras, motoras

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9
Q

Nervios espinales

A

C8
T12
L5
S5
Coc1

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10
Q

No es parte de la médula, son las raíces de los últimos nervios espinales

A

Cauda equina

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11
Q

Tienen las raíces más largas

A

Nervios lumbares y sacros

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12
Q

Es la última porción de la médula espinal

A

Cono medular

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13
Q

Fin del SNC

A

A partir de las raíces de los nervios espinales

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