UNIVERSIDAD TECNICA DE MANABI EXPOSICION DE ANATOMIA COLUMNA VERTEBRAL
Anatomia de columna vertebral
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Transcript of Anatomia de columna vertebral
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DR. JOSE SALVADOR TORRES PRADO R1A
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7
12
5
5
3-4
TOTAL= 32-33
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ARTICULACIONES VERTEBRALES
ARTICULACIONES DE LOS CUERPOS VERTEBRALES
ARTICULACIONES DE LA UNION DE LAS LAMINAS VERTEBRALES
ARTCULACION DE LAS APOSFISIS ESPINOSAS
ARTICULACION DE LA UNION DE LAS APOFISI TRANSVERSAS
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ARTICULACION DE LAS VERTEBRAS CERVICALES : 1.-OCCIPITO ATLANTOIDEA 2. ATLANTO- AXOIDEA LATERAL Y MEDIAL(LIGAMENTOS ATLANTO AXOIDEOS ANTERIOR Y POSTERIOR,
3.LIGAMENTO NUCAL- APOFISIS ESPINOSAS)
4. LIGAMENTO TRASNVERSO DEL ATLAS (DE MASA LATERAL –CARILLA ARTICULAR POSTERIOR DE ODONTOIDES -A MASA LATERAL DEL ATLAS)
5.- LIGAMENTO ALAR (ARCO ANTEROR ATLAS- APOFISIS ODONTOIDES
ARTICULACIONES VERTEBRALES
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ARTICULACIONES VERTEBRAS TORACICAS : COSTALES (PUNTO DE APOYO, POCO MOVILES,DISCO INTERVERTEBRAL DELGADO)
ARTICULACIONES DE LAS VERTEBRAS LUMBARES: ARTICULACION CIGAPOFISIARIA MAS FUERTE POR LIG AMARILLO(SON FUERTES Y MOVILES , DIFERENCIA EN LAMINAS Y PEDUICULOS ALTOS
ARTICULACIONES VERTEBRALES
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ARTICULACIONES VERTEBRALES
ARTICULACION DEL SACRO Y COXIS:
1.- ARTICULACION LUMBO-SACRA : POSEA ANGULACION DE 20 A 45º INCLINADA HACIA ABAJO (ANGULO SACRO-VERTERAL)
2.- DISCO INTERVERTEBRAL MUY GRUESO
3. LIGAMENTO LONGITUDINAL POSTERIOR MAS FUERTE Y REFORZADO(EVITAR ESPONDILOLISTESIS)
4. LIGAMENTO SACRO-VERTEBRAL O DE BICHAT. (UNE APOFISIS TRANSVERSA L5 Y ALA DEL SACRO
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ARTICULACIONES VERTEBRALES
5. LIGAMENTO SACRO-COXIGEO ( SE CRUZAN SON 2 ANTERIOES Y 2 POSTERIORES
6.- LIGAMENTO SACRO –ILEACO ANTERIOR Y POSTERIOR
7.- LIGAMENTO SACRO – ESPINOSO
8. LIGAMENTO SACRO TUBEROSO (SACRO – ISQUION)
.
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POSTERIORES :
9. CRESTA SACRA MEDIA (TERMINACION DEL LLP
10. LIGAMENTOS SACRO-COXIGEO LATERALES
11. LIGAMENTOS INTERCOXIGEOS
ARTICULACIONES VERTEBRALES
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EXTENSION DEL AGUJERO MAGNO A CONO MEDULAR, TERMINANDO EN FILUM TERMINALANTERIOR LLP , LATERAL; NERVIOS ESPINALES, POSTERIOR ARACNOIDES.
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FORMADA POR : LAMINA EXTERNA ( ESPACIO VIRTUAL ENTRE ARACNOIDES Y DURAMADRECAPA INTERNA ( ESPACIO SUBARACNOIDEO)
TRABECULAS : UNEN ALA PIAMADRE
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SUPERFICIE INTERNA : UNE MEDULA
SUPERFICIE EXTERNA ; CAVIDAD SUBARACNOIDEA
LATERAL : LIGAMENTOS DENTADOS
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MEDULA ESPINALEXTENSION :
SUPERIOR : CONTINUA AL BULBO RAQUIDEO
A NIVEL OSEO ARCO ANTERIOR ATLAS Y APOFISIS ODONTOIDES AXIS
INFERIOR :VERTICE DEL CONO MEDULAR L1-L2(ESTE VERTICE SE CONTINUA CON EL FILIUM TERMINAL QUE SE FIJA ALA 1º VERTEBRA COXIGEA
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MEDULA ESPINAL
ENSANCHAMIENTOS O INTUMECENCIAS MEDULARES :
DOS ENSANCHAMIENTOS;
CERVICAL = VA DE C3- T3 C3 : RAICES DEL PLEXO CERVICAL DEL CUELLO Y NUCA
C4 : DA ORIGEN AL NERVIO FRENICOC5 – T1 : RAICES DEL PLEXO BRAQUIAL
TORACICA : LOCALIZADA ENTRE ENSANCHAMIENTO CERVICAL Y
ENSANCHAMIENTO LUMBAR T3-T10ORIGINA : ONCE RAICES NERVIOSAS
INTERCOSTALES
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MEDULA ESPINAL
ENSANCHAMIENTO LUMBOSACRO : VA DE T10 A L2ORIGINA : PLEXOS LUMBAR Y SACRO
CONO MEDULAR : ES EL EXTREMO DEL ENSANCHAMIENTO LUMBOSACROESTA RODEADO POR LAS RAICES DE LA COLA DE CABALLOORIGINA : LAS ULTIMAS RAICES SACRAS Y COXIGEAS VA DE L1-L2
FILUM TERMINAL : EXTENSION DE LA PIAMADRE QUE RECUBRE AL CONO MEDULAR Y A NIVEL LUMBAR LO VA A RECUBRIR LA DURAMADRE POR EL CONDUCTO SACRO HASTA INSERTARSE EN COXIS LLAMANDOSE AHÍ LIGAMENTO COXIGEO O FILUM TERMINAL EXTERNO
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MEDULA ESPINALCORTE TRANSVERSAL :
CARA ANTERIOR : FISURA MEDIA ANTERIOR O SURCO MEDIO ANTERIOR CORDON ANTERIOR
CORDONES ANTERIORES : ENTRE SURCO ANTERIOR Y LATERAL SE DIVIDEN EN DERECHO E IZQUIERDO
CARAS LATERALES : CORDONES LATERALESSURCO ANTEROLATERAL
CARA POSTERIOR : SURCO POSTEROLATERAL TABIQUE MEDIO POSTERIOR (ESTE SE SUBDIVIDE EN MEDIAL O GRACIL Y LATERAL O CUNEIFORME)
CORDONES POSTERIORES : ENTRE SURCO LATERAL Y POSTERIOR
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MEDULA ESPINALRAICES ESPINALES :
ANTERIORES : MOTORAS ( SALEN DE LA MEDULA)
POSTERIORES : SENSITIVAS (ENTRAN ALA MEDULA)
AMBAS CONVERGEN FUERA DE LA MEDULA FORMANDO TRONCO NERVIOSO ESPINAL QUE SALEN POR LAS ESCOTADURAS INTERCOSTALES•FORAMEN INTERVERTEBRALES
•RAIZ L5-S1 : FORMAN UN TRONCO COMUN DECENDIENDO OBLICUAMENTE PARA ALCANZAR EL AGUJERO DEL SACRO
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MEDULA ESPINAL
VASCULARIZACION :
A. RADICULARES O A. MEDULARES :
CUELLOTORAX : INTERCOSTALES POSTERIORES (RAMAS DE AORTA TORACICA)LUMBAR : ARTERIAS LUMBARESPELVIS : ARTERIAS SACRAS
PASAN POR EL AGUJERO INTERVERTEBRAL O ESCOTADURA INTERVERTEBRALY SE DIVIDEN 2 RAMAS ANTERIORES Y 2 POSTERIORES QUE RODEAN ALA MEDULA
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MEDULA ESPINALB.- ARTERIAS ESPINALES :
DOS ARTERIAS PARALELAS QUE VIENEN CAUDALMENTE DESDE EL AGUJERO MAGNO Y SE REUNEN EN UN TRONCO EN FISURA MEA ANTERIOR
DOS A. ESPINALES POSTERIORES : ORIGINADAS DE LAS A. CEREBELOSAS POSTEROINF
A. RADICULARES MEDULARES : PROVIENEN DE LA A. ESPINALES
ARTERIAS DE LA INTUMECENCIA CERVICAL : PROVIENEN DE A. VERTEBRAL
ARTERIA MEDULAR SEGMENTARIA O A. RADICULAR DE ADAM KIEWICZ :IRRIGA ENSANCHAMIENTO LUMBOSACROES UNILATERALORIGEN : VIENE DE LAS ULTIMAS INTERCOSTALES
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VENAS
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