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Músculo oblicuo interno abdominal

Músculo oblicuo interno abdominal

Músculo Oblicuo menor del abdomen
Latín [TA]: musculus obliquus internus abdominis
TA A04.5.01.017
Origen Ligamento inguinal, Cresta ilíaca y de la fascia toracolumbar,
Inserción línea alba, línea pectinea, borde inferior 10-12 costilla
Nervio Nervios periféricos;T6-12 y L1
Acción Comprime y sostiene vísceras abdominales, rota y flexiona el tronco.
Enlaces externos
Gray pág.412

El músculo oblicuo interno abdominal, oblicuo interno del abdomen u oblicuo menor del abdomen ([TA]: Obliquus internus abdominis) es un músculo del abdomen que se encuentra en la parte anterolateral del mismo, debajo del oblicuo mayor; par, ancho, aplanado, constituido por fascículos carnosos y aponeurosis.

Se inserta, por abajo, en el arco crural, espina ilíaca superior y, mediante aponeurosis, en las apófisis espinosas de la última lumbar y primera sacra, por arriba en el borde inferior de los cuatro últimos cartílagos costales y, mediante la aponeurosis anterior, en la línea alba.

Lo inervan los nervios intercostales y el abdominogenital.

Su función es la de espirador, flexor y rotador del tronco.

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Músculo oblicuo interno abdominal
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