
M.S.
Presentation
•
Biology
•
11th Grade
•
Hard
Kelemen Eszter
Used 2+ times
FREE Resource
15 Slides • 0 Questions
1
Măduva spinării - e un organ nervos
localizare - centrul corpului, în canalul vertebral
2
Structura externă
protejare - vertebre
3
acoperit - meninge
4
Structura internă
sub, cenușie
sub. albă
rădăcină
5
Funcțiile
reflex - receptor, calea aferenta, centru, calea eferenta, efector
de conducere
6
7
Tipurile reflexelor:
somatice si vegetative
somatice: monosinaptice sau polisinaptice
monosinaptic: reflexul rotulian, reflexul Achilian
polisinaptic: reflexe de aparare
vegetative: pupilodilatator, defecatia, pilomotor, vasomotor
8
Funcția de conducere
9
Calea ascendentă, aferentă, sensibilitatii
exteroceptiva
proprioceptiva
interoceptiva
10
Calea descendentă, eferentă, motorie
voluntare
involuntare
11
Căile ascendente
sensibilitatea exteroceptivă: spinotalamic anterior - grosiera
12
sensibilitatea exteroceptivă
spinobulabare( Goll si Burdach) - fine
spinotalamic lateral - dureroase, termice
13
Sensibilitatea proprioceptivă
constiente si inconstiente
constiente: spinobulbare
inconstiente: spinocerebelos direct -Flechsig- partea inferioara a corpului; spinocerebelos incrucisat - Gowers - partea superioara
14
Sensibilitatea interoceptiva
spinotalamice si spinobulbare
15
Căile descendente
căile piramidale: voluntarea ; direct sau incrucisat
căile extrapiramidale: involuntare: mersul, vorbitul, scrisul
Măduva spinării - e un organ nervos
localizare - centrul corpului, în canalul vertebral
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