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ANATOMIA DE BRAZO
Dr. Vctor Cabrera Caso
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BICEPS BR QUI L
ORIGEN
Cabeza ar!a" t#b$rc#o s#%ra!e&o'(eo
(e a esca%#a
Cabeza corto" a%o). coro&o'(esINSERCION T#beros'(a( (e ra('o
*UNCION
A. Co(o
*e+',& - s#%'&ac',& co& co(o
)e+'o&a(o/
B. 0o1bro
Ab(#cc',& - rotac',& '&ter&a cabeza
Lar!a/
A&te2ers',& cabeza ar!a - corta/
INERV CI3N
1c
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Trce%s bra4#'a
*or1a(o %or tres cabezas5
La cabeza ar!a se or'!'&a e& e
t#b$rc#o '&)ra!e&o'(eo (e a
esca%#a.
Lacabeza 1e('a
se or'!'&a (e
#&a zo&a e+te&sa (e c#er%o (e
6#1ero" e& a %arte '&)er'or a
s#rco (e &er2'o ra('a.
Lacabeza atera
se or'!'&a e&
#&a r#!os'(a( '&ea s#%er'or a
s#rco (e &er2'o ra('a.
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TRICEPS BR QUI L
ORIGEN
Cabeza ar!a" t#b$rc#o '&)ra!e&o'(eo
Cabeza 1e('a" S7 %oster'or (e 6#1ero"
('sta a s#rco %ara e N ra('a" tab'4#e IM
Cabeza atera" S7 %oster'or (e 6#1ero"
%ro+'1a a s#rco %ara e N ra('a" tab'4#e IM
INSERCION O$cra&o (e c8b'to
*UNCION
Art. Co(o5 e+tes&',&
Art. 0o1bro5 cabeza ar!a" retro2ers',& -
a(#cc',& (e brazo
INERV CI3
N
ra('a
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NC9NEO
ORIGEN
E%'c:&('o atera (e c;b'to- %arte (orsa (e a ca%s#a
art'c#arINSERCION O
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Angiologa.
Arteria subclaviaderecha.
Arteria subclaviaizquierda.
Arteria axilar.Arteria braquial.Arteria ulnar.Arteria radial.
A t '
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Arter'as - 2e&as
La %r'&c'%a arter'a (e
brazo es aarter'a
bra4#'a.
Co1'e&za e& e bor(e'&)er'or (e re(o&(o 1a-or"co1o %roo&!ac',& (e aarter'a a+'ar.
D'staa a art'c#ac',& (e
co(o se b')#rca e& asarter'as ra('a - c#b'ta.
La arter'a bra4#'ase%#e(e %a%ar a co1%r'1'raco&tra a cara 1e('a (e
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Arter'a bra4#'a %ro)#&(a
Ra1a (e 1a-or ta1a=o (e aarter'a bra4#'a.
E&tra e& e co1%art'1e&to%oster'or (e brazo >#&to a&er2'o ra('a a tra2$s (e'&ter2ao tr'a&!#ar.
Se s't8a e& e s#rco (e &er2'ora('a e& a s#%er)'c'e%oster'or (e 6#1ero.
Las (os 2e&as bra4#'aes ses't8a& atera - 1e('a a aarter'a bra4#'a.
E& e brazo e&co&tra1os2e&as s#bc#t?&eas5 a 2e&abas'ca - a 2e&a ce)?'ca.
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Arter'a 0#1era
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Es%ac'o c#a(ra&!#ar
El borde inferior delredondo menor.
El cuello quirrgico
del humero. El borde superior
del redondo mayor.
El borde lateral de
la cabeza larga deltrceps braquial.
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NERVIO A@ILAR
Pasa por el espaciocuadrangular.
supercie posterior delcuello quirrgico delhumero.
Inervam. deltoides yredondo menor.
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Es%ac'o tr'a&!#ar
delimitado El borde medial de la cabeza
larga del trceps braquial.
El borde superior delredondo mayor.
El borde inferior del redondomenor.
A.y la vena circunfejas
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I&ter2ao tr'a&!#ar
ormado
El borde lateral de la cabezalarga del trceps braquial.
El cuerpo !diasis" del humero El borde inferior del redondo
mayor.
El nervio radial# la arteriabraquial profunda y susvenas.
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N M#sc#oc#ta&eo Atra2'esa e 18sc#o
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N. M#sc#oc#ta&eo Atra2'esa e 18sc#ocoracobra4#'a.
E& e co(o %er)ora a )asc'a%ro)#&(a - se co&t'a co1oe &er2'o c#t?&eo atera (ea&tebrazo.
*#&c',&5 La '&&er2ac',& 1otora(e
to(os os 18sc#os (eco1%art'1e&to a&ter'or (ebrazo.
La '&&er2ac',& se&s't'2a(e a%'e (e a s#%er)'c'e atera (ea&tebrazo.
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N ('E
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N. 1e('a&o E& a re!',& %ro+'1a"e &er2'o 1e('a&o es
'&1e('ata1e&te atera
a a arter'a bra4#'a.
Se ('s%o&e a&ter'or a a
art'c#ac',& (e co(o.
Noe1'te ra1os
(estaca(os e& e brazo.
E1'tera1os %ara e
18sc#o %ro&a(or
re(o&(o.
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N b't E& a se s't8a
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N. c#b'ta E& a zo&a %ro+'1ase s't8a1e('a a a arter'a a+'ar.
E& a
zo&a 1e('a
(e brazo e&er2'o c#b'ta %er)ora etab'4#e '&ter1#sc#ar 1e('a.
Pasa %or a s#%er)'c'e%oster'or (e e%'co&('o1e('a (e 6#1ero - e!a aco1%art'1e&to a&ter'or (ea&tebrazo.
E &er2'o c#b'ta &o e1'tera1os (estaca(os e& ebrazo.
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Se s't8a a a
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N. ra('a Se s't8a %oster'or a a
arter'a bra4#'a.
Aco1%a=a a a
arter'a
bra4#'a %ro)#&(a e& es#rco (e ra('a.
Atra2'esa e tab'4#e'&ter1#sc#ar atera.
Se ('s%o&e e&tre e 18sc#obra4#'a - e
bra4#'orra('a.
E &er2'o ra('a co&tr'b#-ea '&er2ar a %arte atera (e
18sc#o bra4#'a.
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