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Ischiococcygeus - male

Other Terms: Coccygeus, Ischiococcygeus, Musculus coccygeus, Musculus ischiococcygeus

Muscle parts

None

Latin name

Musculus ischiococcygeus or Musculus coccygeus

Latin muscle parts

None

Group

Pelvis/perineal wall – lateral musculature – internal layer

Etymology

The English name of this muscle is the muscle of the hip and cuckoo. The word ischium has an interesting history. Hippocrates first used the Greek term ischion to designate both the “hip joint and the hip region.” It was later Latinized as ischium and used to describe “the lower bone of the os coxae.” The word coccygeus comes from the Greek kokkyx meaning “cuckoo,” because of the resemblance of the coccyx or tailbone to the beak of a cuckoo bird.

Origin

Internal surface and tip of ischial spine; joined to sacrospinous ligament, which forms its posterosuperior edge.

Insertion

Lateral border of the coccyx and 5th sacral segment.

Action

Compress the urethra and anus; elevate the recto-anal junction; support pelvic viscera; increase intra-abdominal pressure; active in normal quiet inspiration

Nerve supply

2nd and 3rd sacral spinal nerves via the pudendal nerve or from small direct branches of S2 and S3 levels of the plexus

Blood supply

Branches of the internal iliac artery

Latin

Musculus coccygeus

Latin

Musculus ischiococcygeus

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