Caile SNV Flashcards

1
Q

Simpaticul îsi are cãile lui proprii, reprezentate de:

A

lanturile simpatice paravertebrale (latero-vertebrale)

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2
Q

Parasimpaticul cranian foloseste calea

A

nervilor cranieni III, VII, IX, X,

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3
Q

Parasimpaticul sacral foloseste calea

A

nervilor pelvici ( rad ant ale nervilor spinali sacrali)

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4
Q

Din cati ggl sunt formate lanturile simp paravertebrale

A
19-22 ggl laterovertebrali
3 cervicali
11-12 toracali
4-5 lombari
4-5 sacrali
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5
Q

Lanturile simpatice paravertebrale (latero-vertebrale)

A

doua lanturi de ggl situate de o parte si de alta a coloanei vertebrale

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6
Q

ramurile prin care se leaga ggl paravertebrali de nervii spinali

A

comunicanta alba si cenusie;

sunt interconectati intre ei prin fibre ggl

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7
Q

locul in care se realizeaza sinapsa intre fibrele pre/post ggl pt simpatic

A

ggl paravertebrali
=> f preggl - scurta
f post ggl - lunga

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8
Q

locul in care se realizeaza sinapsa intre fibrele pre/post ggl pt parasimpatic

A

ggl reviscerali(juxstaviscerali)
ggl intramurali (terminali)
=> f preggl lunga
f postggl scurta

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9
Q

mediator chimic intre fibre pre/post ggl

A

Ach

sinapsa colinergica

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10
Q

SIMPATIC:

intre fibra postggl si efector se elibereaza

A

NA

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11
Q

PARASIMPATIC

intre fibra postggl si efector se elibereaza

A

Ach

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12
Q

cum coordoneaza SNV activ viscerelor si a vaselor sangvine

A

prin controlul miocardului, musculaturii netede si glandelor (control involuntar)

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13
Q

componentele arcului reflex vegetativ

A
receptor
cale aferenta
centru
cale eferenta
efector
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14
Q

cei doi neuroni din caile eferente

A

I neuron-preggl- in subst cenusie medulara sau cerebrala

ll neuron-postggl- se afla intr un ggl veg extranevraxial

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