Name
Pronunciation
(pue-bo-rek-TA-l us)
Origin/Proximal Attachment
Slighlty lateral to the posterior surface of the symphysis pubis
Insertion/Distal Attachment
Forms a sling behind the anorectal junction
Action/Relevance
Supports the rectum
Innervation
S3, 4 & inferior rectal nerve
Notes
The fibers which form a sling for the rectum are named the Puborectalis or Sphincter recti. They arise from the lower part of the symphysis pubis, and from the superior fascia of the urogenital diaphragm. They meet with the corresponding fibers of the opposite side around the lower part of the rectum, and form for it a strong sling.