Maduva spinarii Flashcards

1
Q

Unde este dispusa substanta cenusie?

A

la interior

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2
Q

Ce forma are substanta cenusie?

A

litera H

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3
Q

Cate perechi de coarne prezinta substanta cenusie?

A

3 perechi

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4
Q

Cum se numesc cele 3 perechi de coarne pe care le prezinta substanta cenusie?

A

posterioara-dorsala
anterioara-dorsala
laterale

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5
Q

Ce contin coarnele posterioare/dorsale?

A

neuroni somatosenzitivi si intercalari (de asociatie)

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6
Q

Ce semnificatie au neuronii somatosenzitivi?

A

de deutoneuroni (al II-lea) ai cailor senzitive

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7
Q

Cu ce fac sinapsa neuronii somatosenzitivi?

A

protoneuronii (primul neuron)

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8
Q

Unde este localizat protoneuronul?

A

in ganglionul spinal

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9
Q

Ce contin coarnele anterioare/ventrale?

A

neuroni somatomotori

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10
Q

Ce fac neuronii somatomori?

A

coordoneaza activitatea musculaturii striate

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11
Q

Ce formeaza axonii neuronilor somatomotori?

A

radacinile anterioare ale nervilor spinali

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12
Q

Ce contin coarnele laterale?

A

neuroni viscerosenzitivi si visceromotori somatici

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13
Q

Unde se afla substanta reticulata?

A

intre coarnele posterioare si laterale si in jurul canalului ependimar

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14
Q

Unde este mai bine individualizata substanta reticulata?

A

in regiunea cervicala

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15
Q

Ce formeaza substanta reticulata?

A

neuroni asezati in retea

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16
Q

Unde este dispusa substanta alba?

A

la exterior

17
Q

Din ce este alcatuita substanta alba?

A

din fibre nervoase

17
Q

Care sunt fibrele nervoase din care este alcatuita substanta alba?

A

mielinice, amielinice si nevroglii

17
Q

Cum se numesc cele 3 perechi de cordoane pe care le prezinta substanta alba?

A

anterioare, posterioare si laterale

18
Q

Ce sunt cordoanele?

A

cai de conducere/ tracturi a impulsurilor intre diferite etaje ale SNC

18
Q

Cum pot fi caile de conducere?

A

scurte, lungi, descendente si de asociatie

19
Q

Ce fac caile de conducere scurte?

A

leaga segmente medulare

19
Q

Cum sunt caile de conducere lungi?

A

ascendente, situate periferic

20
Q

Ce fac caile de conducere lungi?

A

conduc informatii de la receptori

21
Ce fac caile de conducere descendente?
conduc informatii spre efectori
21
Unde sunt situate caile de conducere descendente?
spre interior
22
Unde sunt situate caile de conducere de asociatie?
profund, in vecinatatea substantei cenusii