Pubic symphysis

Study entry

Classification

Secondary (cartilaginous) joint.

Surfaces

Bodies of the two pubic bones, joined in the median plane by the interpubic fibrocartilaginous disc (usually wider in women).

Capsule

Ligaments thickened at the upper and lower borders: the superior pubic ligament joins the upper surfaces of the bodies and of the disc and extends to the pubic tubercles; the inferior (arcuate pubic ligament) is a thick arch that joins the lower surfaces and rounds the subpubic angle. The decussating fibers of the tendons of the rectus abdominis and the external oblique reinforce it in front.

Movements

Little movement.

Blood supply

[CHECK: Moore does not describe it in the passages consulted (look in another source).]

Innervation

[CHECK: Moore does not describe it in the passages consulted (look in another source).]

Source: cap. 6, «Sínfisis del pubis»

Other structures in this region

• Interosseous membrane of leg
• Obturator membrane
• Distal intertarsal joints (cuneonavicular, cuboideonavicular, intercuneiform and cuneocuboid)
• Triradiate cartilage of the acetabulum
• Hip joint
• Knee joint
• Superior tibiofibular joint
• Tibiofibular syndesmosis (inferior tibiofibular joint)