Superficial Posterior Sacrococcygeal Ligament
Ligamentum sacrococcygeum posterius superficiale
Read moreStructure
There are two parts to the posterior sacrococcygeal ligament.
—The superficial portion extends from the edge of the sacral hiatus to the posterior coccyx. It is the equivalent of the supraspinous ligament.
—The deep portion extends from the posterior aspect of the fifth sacral vertebral body to the posterior coccyx. It is analogous to the posterior longitudinal ligament.
Anatomical Relations
The superficial posterior sacrococcygeal ligament extends from the edge of the sacral hiatus to the posterior coccyx.
Function
The superficial posterior sacrococcygeal ligament forms the roof of the inferior sacral canal.
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Coccyx
The coccyx is a small triangular bone at the bottom of the vertebral column consisting of three to five (usually four) fused rudimentary vertebrae.
