Pelvic cavity

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Pelvic cavity
Latin	cavitas pelvis
Lymph	primarily internal iliac lymph nodes
Dorlands/Elsevier	c_16/12220544

The pelvic cavity is a body cavity that is bounded by the bones of the pelvis and which primarily contains reproductive organs, the urinary bladder, and the rectum.

Contents 1 Borders 2 Greater and lesser pelvis 3 Ligaments 4 Arteries 5 Nerves 6 Additional images 7 External links

[edit] Borders

The boundaries are as follows:

• anterior: pubic symphysis
• posterior (or "roof"): piriformis, sacrum, coccyx
• lateral: obturator internus
• floor: levator ani muscle (or, more generally, the pelvic floor)

[edit] Greater and lesser pelvis

The lesser pelvis (or "true" pelvis" only includes structures inferior to the pelvic brim.

For example, the pelvic splanchnic nerves arising at S2-S4 is in the true pelvis, but the femoral nerve from L2-L4 is only in the "false pelvis", or greater pelvis.

[edit] Ligaments

Ligament	From	To
broad ligament of the uterus
* mesovarium	ovary
* mesosalpinx	Fallopian tube
* mesometrium
cardinal ligament
ovarian ligament	ovary	uterus
round ligament of the uterus
suspensory ligament of the ovary

[edit] Arteries

• internal iliac artery
• median sacral artery
• ovarian artery

[edit] Nerves

• sacral plexus
• splanchnic nerves

[edit] Additional images

	Articulations of pelvis. Anterior view.	The arteries of the pelvis.	Dissection of side wall of pelvis showing sacral and pudendal plexuses.
Sacral plexus of the right side.

[edit] External links

• Overview at buffalo.edu
• Diagram at southwest.tn.edu
• Photo of model (female)

v • d • e Pelvis/pelvic cavity: sacrum, coccyx, hip bone

Ilium: Arcuate line - Wing - gluteal lines (Posterior, Anterior, Inferior) - Fossa - Tuberosity - Crest - iliac spines (Anterior superior - Anterior inferior - Posterior superior - Posterior inferior) Ischium: Body (Ischial spine, Lesser sciatic notch) - Superior ramus (Tuberosity of the ischium) - Inferior ramus Pubis: Superior ramus (Pubic tubercle, Pubic crest, Obturator crest) - Inferior ramus (Pectineal line) Compound: Obturator foramen - Acetabulum - Acetabular notch - Greater sciatic notch - Iliopectineal eminence - Ischiopubic ramus - Pubic arch - Lesser pelvis (Pelvic inlet, Pelvic brim, Pelvic outlet) - Greater pelvis