1. PELVIS AND PERINEUM

2. Bony Pelvis Review bones of pelvic girdle. Pelvic brim:
= superior outlet.
Boundaries:
Sacral promontory.
Arcuate lines.
Iliopectineal line of pubis.
Greater (false) pelvis:
= expanded area above pelvic brim.

3. Bony Pelvis Pelvic outlet: Bounded by: Lesser pelvis:
Coccyx, sacrotuberous ligaments, ischial tuberosities, ischiopubic rami, pubic symphysis.
Lesser pelvis:
Portion of bony pelvis below pelvic brim.
Closed below by pelvic diaphragm.

4. Pelvic Diaphragm Levator ani: Consists of: Puborectalis:
forms a sling around anorectal junction.
Pubococcygeus.
Iliococcygeus.

5. Pelvic Diaphragm Levator ani: Ischiococcygeus.
Forms muscular sling supporting pelvic organs.
Incomplete anteriorly to allow for passage of urethra and vagina.
Ischiococcygeus.

6. Urogenital Diaphragm
Layer of skeletal muscle between two layers of fascia:
Penetrated by membranous urethra (male and female) and vagina.
Ischiorectal fossa:
Wedge-shaped space between:
Anal canal, obturator internus, pelvic diaphragm, skin.

7. Perineum Diamond-shaped area below pelvic Diaphragm:
Same boundaries as inferior pelvic aperture.
Divided into two triangles:
Anal triangle.
Urogenital triangle.

8. Viscera of Male Pelvis Seminal vesicle. Ductus deferens.
Ejaculatory duct.
Prostate gland.
Urethra:
Prostatic.
Membranous.

9. Viscera of Female Pelvis
Ovaries.
Uterine tube (Fallopian tube; oviduct):
Infundibulum.
Ampulla.
Isthmus.
Intramural part.
Uterus:
Body.
Fundus.
Cervix.

10. Viscera of Female Pelvis
Ligaments:
Broad ligament:
Formed by two layers of peritoneum.
Contains:
Uterine tube.
Round ligament of uterus.
Ligament of the ovary.
Uterine vessels.
Vagina.

11. Arteries of Pelvis Internal iliac artery: Supplies:
Arises from common iliac artery anterior to sacroiliac joint.
Supplies:
Perineum.
Gluteal region.
Pelvic organs and walls.
Divided into anterior and posterior divisions.

12. Arteries of Pelvis Internal iliac artery: Anterior division:
Umbilical artery.
Obturator artery.
Inferior gluteal artery.
Internal pudendal artery.
Inferior vesical artery.
Middle rectal artery.
Uterine arteries.
Vaginal artery.

13. Arteries of Pelvis Internal iliac artery:
Posterior division:
Superior gluteal artery.
Iliolumbar artery.
Lateral sacral artery.
Other arteries of the pelvis:
Ovarian artery.
Superior rectal artery.
Median sacral artery.