Untitled

lateral part

· Sacrotuberous- Strong ligament extending from the of the sacrum and coccyx to the ischial tuberosity.

· Functions

: The sacrotuberous and sacrospinous ligaments prevent the lower end of the sacrum and coccyx from being rotated upward at the sacroiliac joint by the weight of the body.

·       Anterior Wall

Pubic bone; Pubic symphysis

·       Lateral Wall

Hip bone below the pelvic inlet; Obturator membrane; Obturator internus muscle (Refer slides for OAIN)

·       Posterior Wall

Sacrum and coccyx; Piriformis muscle (Refer slides for OAIN)

·       Obturator Membrane

Fibrous sheet that almost completely encloses the obturator foramen

·       Sacrotuberous

Strong ligament extending from the lateral part of the sacrum and coccyx to the ischial tuberosity

·       Sacrospinous Ligament

Strong ligament extending from the lateral part of the sacrum and coccyx to the ischial spine

·       Functions

The sacrotuberous and sacrospinous ligaments prevent the lower end of the sacrum and coccyx from being rotated upward at the sacroiliac joint by the weight of the body

·       Pelvic Diaphragm

Separates pelvis from the perineum below

·       Pubic Tubercles and the ASIS

are located on the same vertical plane in the anatomical position

·       Visceral Pelvic Fascia

looser connective tissue investing the pelvic viscera (e.g., bladder, vagina, uterus, rectum)