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ANATOMÍA DEL HOMBRO Y BRAZO.
Profesor: FRANK MENDOZA
Sección Anatomía Macroscópica
Decanato de Medicina UCLA
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•HOMBRO.
•BRAZO.
•CODO.
•ANTEBRAZO.
•MUÑECA.
•MANO.
HOMBRO Y BRAZO
MIEMBRO SUPERIOR.Segmentos del Miembro Superior
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HOMBRO.
•REGIÓN AXILAR
•REGIÓN DELTOIDEA
•REGIÓN ESCAPULAR
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BRAZO
•REGIÓN BRAQUIAL ANTERIOR
•REGIÓN BRAQUIAL POSTERIOR
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MÚSCULOS DEL HOMBRO.
I. EXTRÍNSECOS
•TRAPECIO.•DORSAL ANCHO.
TORACOAPENDICULARES POSTERIORES SUPERFICIALES.
TORACOAPENDICULARES POSTERIORES PROFUNDOS
•ROMBOIDES.•ANGULAR DEL OMÓPLATO.
TORACOAPENDICULARES ANTERIORES.
•PECTORAL MAYOR.•PECTORAL MENOR.•SUBCLAVIO.•SERRATO ANTERIOR.
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II. INTRÍNSECOS (ESCAPULOHUMERALES).
DELTOIDES. REDONDO MAYOR. SUPRAESPINOSO. INFRAESPINOSO. SUBESCAPULAR. REDONDO MENOR
MS DEL MANGUITO ROTADOR DEL HOMBRO.
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Músculos Extrínsecos.Toracoapendiculares posteriores superficiales
Trapecio.
Dorsal ancho
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Músculo Trapecio
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Músculo Dorsal Ancho
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Músculos ExtrínsecosToracoapendiculares Posteriores Profundos
ROMBOIDES
ANGULARDEL OMÓPLATO
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Músculos ExtrínsecosToracoapendiculares Posteriores Profundos
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Músculos ExtrínsecosTORACOAPENDICULARES ANTERIORES
•PECTORAL MAYOR.
•PECTORAL MENOR.
•SUBCLAVIO.
•SERRATO ANTERIOR
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Músculos ExtrínsecosTORACOAPENDICULARES ANTERIORES
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Músculos ExtrínsecosTORACOAPENDICULARES ANTERIORES
Músculo Pectoral Mayor
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Músculos ExtrínsecosTORACOAPENDICULARES ANTERIORES
Músculo Pectoral Mayor
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Músculos ExtrínsecosTORACOAPENDICULARES ANTERIORES
2. PECTORAL MENOR.
1. SUBCLAVIO
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SERRATO ANTERIOR.
Músculos ExtrínsecosTORACOAPENDICULARES ANTERIORES
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES).
DELTOIDES. REDONDO MAYOR. SUPRAESPINOSO. INFRAESPINOSO. SUBESCAPULAR. REDONDO MENOR
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES).
MÚSCULO DELTOIDES
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES)
MÚSCULO DELTOIDES
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES)
MÚSCULO DELTOIDES
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES).
MÚSCULO REDONDO MAYOR
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES).
MÚSCULO SUBESCAPULAR
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II. MÚSCULOS INTRÍNSECOS (ESCAPULOHUMERALES).
1. SUPRAESPINOSO.2. INFRESPINOSO.3. REDONDO MENOR.
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MANGUITO DE LOS MÚSCULOS ROTADORES DEL HOMBRO
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MANGUITO DE LOS MÚSCULOS ROTADORES DEL HOMBRO
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MÚSCULOS DEL BRAZO
COMPARTIMIENTO ANTERIOR
•MÚSCULO BÍCEPS BRAQUIAL•MÚSCULO BRAQUIAL•MÚSCULO CORACOBRAQUIAL
COMPARTIMIENTO POSTERIOR
•MÚSCULO TRÍCEPS BRAQUIAL
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1. MÚSCULO BÍCEPS BRAQUIAL2. MÚSCULO BRAQUIAL
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MÚSCULO CORACOBRAQUIAL
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MÚSCULO TRÍCEPS BRAQUIAL.
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MÚSCULO TRÍCEPS BRAQUIAL.
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PIRÁMIDE AXILAR.
•PAREDES
• BASE
•VÉRTICE
•CONTENIDO
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PARED ANTERIOR DE LA AXILA
•MÚSCULO PECTORAL MAYOR.
•MÚSCULO PECTORAL MENOR
•FASCIA CLAVIPECTORAL
•MÚSCULO SUBCLAVIO
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PARED INTERNA DE LA AXILA
MÚSCULO SERRATO MAYOR
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PARED POSTERIOR DE LA AXILA
•MÚSCULO SUBESCAPULAR
•MÚSCULO REDONDO MAYOR
•MÚSCULO DORSAL ANCHO
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PARED EXTERNA DE LA AXILA
•CORREDERA BICIPITAL
•MÚSCULO CORACOBRAQUIAL.
•PORCIÓN CORTA DEL MÚSCULO BÍCEPS BRAQUIAL
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VÉRTICE DE LA AXILA
LÍMITES
Anterior: Borde posterior del tercio medio de la Clavícula. Músculo Subclavio.
Interno: Borde Externo de la primera Costilla.
Posteroexterno: Ángulo Superior de escápula y Apófisis Coracoides.
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ARTERIA AXILAR
NIVEL DE ORIGEN BORDE EXTERNO DE LA PRIMERA COSTILLA
NIVEL DE CULMINACIÓN
BORDE INFERIOR DEL TENDÓNDEL MÚSCULO PECTORAL MAYOR
OBORDE INFERIOR DEL TENDÓNDEL MÚSCULO REDONDO MAYOR
CONTINUACIÓN DE LA ARTERIA SUBCLAVIA
SE CONTINÚA CON LA ARTERIA BRAQUIAL
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ARTERIA AXILAR.
DIVIDIDA EN TRES PORCIONES POR EL MÚSCULOPECTORAL MENOR
PRIMERA PORCIÓN
1. ARTERIA TORÁCICA SUPERIOR(INCONSTANTE)
SEGUNDA PORCIÓN
2. ARTERIA ACROMIOTORÁCICA
3. ARTERIA TORÁCICA LATERAL(MAMARIA EXTERNA)
TERCERA PORCIÓN
4. ARTERIA SUBESCAPULAR
5. ARTERIA CIRCUNFLEJA HUMERAL ANTERIOR
6. ARTERIA CIRCUNFLEJA HUMERAL POSTERIOR
ART. CIRCUNFLEJA ESCAPULARART. TORACODORSAL.
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VENA AXILAR.
SE FORMA DE LA UNIÓN ENTRELA VENA BASÍLICAY LAS VENAS HUMERALES
AFLUENTES PRINCIPALES
•VENA CEFÁLICA
•VENAS SUBESCAPULARES
•VENAS TORÁCICAS LATERALES
•VENAS ACROMIOTORÁCICAS
•VENAS CIRCUNFLEJAS HUMERALES
SE CONTINÚA COMO VENA SUBCLAVIADESPUÉS DE SOBREPASAREL BORDE EXTERNO DE LA PRIMERA COSTILLA
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Plexo braquial
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GRUPOS GANGLIONARES LINFÁTICOS DE LA AXILA
•GRUPO ANTERIOR O PECTORAL
•GRUPO POSTERIOR O SUBESCAPULAR
•GRUPO LATERAL O BRAQUIAL
•GRUPO CENTRAL
•GRUPO APICAL
DRENA A LOS GANGLIOS DEL CUELLO
(DIRECCIÓN DEL FLUJO DE DRENAJE)
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LA DIRECCIÓN DEL FLUJO DE DRENAJE VA DEL NIVEL I AL NIVEL III.(CLASIFICACIÓN DE CIRUGÍA ONCOLÓGICA)
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ARTERIA BRAQUIAL
NIVEL DE ORIGEN
BORDE INFERIOR DEL TENDÓNDEL MÚSCULO PECTORAL MAYOR
OBORDE INFERIOR DEL TENDÓNDEL MÚSCULO REDONDO MAYOR
RAMAS COLATERALES •ARTERIA COLATERAL EXTERNA (BRAQUIAL PROFUNDA)•COLATERAL CUBITAL SUPERIOR (COLATERAL INTERNA SUPERIOR)• ARTERIA COLATERAL CUBITAL INFERIOR (COLATERAL INTERNA INFERIOR)•RAMAS MUSCULARES•ARTERIA NUTRICIA DEL HÚMERO
RAMAS TERMINALES•ARTERIA RADIAL•ARTERIA CUBITAL
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