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Interpubic disc

Other Terms: Interpubic disc, Fibrocartilage of pubic symphysis, Interpubic fibrocartilage, Discus interpubicus, Fibrocartilago interpubica, Disque interpubien

Parts

None

Group

Lower limb joints - Pelvic girdle

Description

This is a fibrocartilaginous symphysis connecting the two pubic bones. It binds to thin plates of hyaline cartilage that cover the rugose symphyseal surfaces of the pubic bones. After puberty a non synovial cavity is usually present within the fibrocartilage symphysis. The anterior aspect of the disc is reinforced by a network of crossing fibers that blend with the periosteum of the pubic bones, the aponeurosis of the external oblique muscles, and the tendinous termination of the rectus abdominus muscles.

Function

Unites the os coxae via a junction of limited flexibility. In the female pelvis, this provides resilient expansion during child birth.

Latin

Discus interpubicus

Latin

Fibrocartilago interpubica

French

Disque interpubien

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