ANAT30008 Lecture Notes - Lecture 23: Inferior Rectal Artery, Skeletal Muscle, Ejaculatory Duct

• School: University of Melbourne
• Department: Anatomy and Neuroscience
• Course: ANAT30008
• Professor: Jason Ivanusic

Document Summary

* the perineum is below the pelvis and is separated from the pelvis by the pelvic floor/pelvic diaphragm/below levator ani. * within the pelvic cavity, there is the genitourinary tract & git tract. The bladder is positioned anteriorly and is supported by the pubic bone anteriorly and by the pelvic floor via puboprostaticus or pubovaginalis indirectly in females, and by ligaments, particularly the pubovesical ligament. The urethra passes through the pelvic floor (at the level of the prostate) and moves down into the perineum in females to the exterior and in males through the penis. * the anorectal junction is at the level of the pelvic floor and so in the perineum it is the anal canal. The flexion of the anal canal on the rectum is maintained by the puborectalis sling. * in females, between the bladder and rectum there is the ante-verted and it is the vagina that penetrates the pelvic floor and passes into the perineum.