More Related Content
What's hot
What's hot (20)
Similar to Arteries in true pelvis
Similar to Arteries in true pelvis (20)
More from anatomysrs
More from anatomysrs (20)
Recently uploaded
Recently uploaded (20)
Arteries in true pelvis
- 1. Arteries of pelvis • Mainly by • Branches of Internal iliac artery • Other contributions • Ovarian artery • Superior rectal artery • Median sacral artery
- 2. Iliac arteries • Common iliac artery divides • In front of the sacroiliac joint • Into External and internal iliac arteries
- 3. Internal iliac artery (Also known as hypogastric artery) • Origin • Arises from • Common iliac artery • At sacroiliac joint • 5th lumbar vertebra & sacrum • Course • Passes down & back into pelvis • Reaches • Upper margin of greater sciatic foramen • Divides into • Anterior and posterior divisions
- 4. Internal iliac artery - Relations • In front • Ureter • Uterine tube (fimbriated end) • Ovary (in female) • Posterior • Sacroiliac joint • Lumbosacral trunk • Internal iliac vein
- 5. Internal iliac artery - relations • Medially • On right • Terminal part of ileum • On left • Sigmoid mesocolon • Laterally • Psoas major • External iliac vein • Obturator nerve
- 6. Internal iliac artery - divisions • Posterior division supplies • Posterior abdominal wall • Posterior pelvic wall • Gluteal region • Anterior division supplies • Pelvic viscera (Except Ovary) • Perineum • Gluteal region • Adductor (medial) region of the thigh
- 7. Branches of Posterior division • Iliolumbar artery • Lateral sacral artery • Superior gluteal artery
- 8. Iliolumbar artery • Ascends behind • External iliac vessels, psoas and iliacus • Divides into • Lumbar • Supplies the muscles of posterior abdominal wall • Psoas and quadratus lumborum • Spinal branch • cauda equine • Iliac branch • Passes through • Intervertebral foramen in between LV and SV • Supplies • Iliacus muscle & bone
- 9. Lateral sacral arteries • Descend in front of sacral plexus • Give branches • Pass into the anterior sacral foramina • Supply • Structures in vertebral canal • Sacral meninges • Piriformis muscle, Erector spinae muscle • Cutaneous area over sacrum
- 10. Superior gluteal • Leaves the pelvis • Through • Greater sciatic foramen • Above • Piriformis • Supplies • Gluteal region
- 11. Branches of Anterior division • Umbilical artery • Obturator artery • Inferior vesical artery (Male) • Vaginal artery • Middle rectal artery • Internal pudendal artery • Inferior gluteal artery • Uterine artery (Female)
- 12. Umbilical artery • Passes on • Lateral wall of pelvis • On levator ani muscle • Proximal part • Is patent & gives • Superior vesical artery • One or many branches • To supply • Upper part of the urinary bladder • Lower end of ureter • Distal part is obliterated • Medial umbilical ligament • Distal fibrous part of the artery
- 13. Obturator artery • Traversing forward on lateral pelvic wall • 2-3 cm below pelvic brim • Passes through • Obturator canal
- 14. Obturator artery – on medial side of thigh • After passes through • Obturator canal • Exits on • Medial side of thigh • Divides into • Anterior & posterior branches • Supplies • Medial compartment of thigh muscles • Obturator extenus
- 15. Obturator artery - branches • Pubic branch • Passes to • Pubic region • Anastomoses with • Pubic branch of inferior epigastric (External iliac) • Acetabular branch • Passes through • Acetabular notch and enters the hip-joint beneath the transverse ligament • In company with an articular branch from the obturator artery • Within joint cavity • Passes along the round ligament to the head of the femur
- 16. Uterine artery • Runs on the pelvic floor • Passes along • Between the layers of the broad ligament • Crosses • Ureter superiorly • Towards lateral fornix of vagina • Then ascends superiorly along • Lateral margin of the uterus • Anastomoses with • Ovarian artery • Supplies • Uterus • Part of vagina • Part of ovary
- 17. Inferior vesical artery • Present in male • Supplies • Base of the bladder • Prostate • Seminal vesicles
- 18. Vaginal artery • Corresponds to inferior vesicle in male • Supplies • Base of the bladder, vagina & rectum • Course • Passes inferomedially • After reaches the vagina • Divides into many anterior & posterior branches • In midline they form anastomoses • Known as anterior and posterior azygos arteries of vagina
- 19. Internal Pudendal Artery • Branch of Internal iliac artery • Leaves pelvic cavity through • Greater sciatic foramen • Enters perineum through • Lesser sciatic foramen • Passes forward in • Pudendal canal with pudendal nerve
- 20. • Inferior rectal artery • Accompanying structures • Inferior rectal nerve • Perineal branch divides into • Posterior scrotal artery • Transverse perineal • Artery to bulb • Deep artery of penis • Supplies erectile tissue • Dorsal artery of penis Internal pudendal artery - Branches
- 21. Inferior gluteal • Largest branch • Of anterior division • Enters gluteal region • Through greater sciatic foramen • Below piriformis
- 22. Parietal Branches • From posterior division • Iliolumbar artery • Lateral sacral arteries (2 branches) • Superior gluteal artery • From anterior division • Obturator artery • Inferior gluteal artery
- 24. Median sacral • Dorsal branch of abdominal aorta • Just above the aortic bifurcation • Represents primitive dorsal aorta • Lies on • Lower 2 lumbar vertebrae • Sacrum • Coccyx • Supplies • Rectum (superopostrior part) • Last 2 lumbar vertebrae • Sacrum • Coccyx
- 25. Ovarian / Testicular • Paired arteries • Origin • Just below the origin of renal arteries • Course • Descends downwards on • Psoas, Ureter & genitofemoral nerve • Right side • Lies behind • 3rd part of duodenum • Root of mesentery • Terminal part of ileum • Left side • Lies behind • Left colic vessels • Inferior mesenteric vein • Descending colon Right gonadal vein drains into IVC Left gonadal vein drains into left renal vein Inferior mesenteric vein drains into
- 26. Ovarian artery • Crosses • External iliac vessels • At pelvic brim • Enters • Infundibulopelvic (suspensory) ligament • So lies in broad ligament • Finally reaches ovary • Supplies • Ovary • Uterine tube • Uterus
- 27. Superior rectal • Continuation of • Inferior mesenteric artery • Crosses • Left common iliac artery • Descends in • Medial limb of sigmoid mesocolon • Supplies • Mucous membrane of rectum & upper half of anal canal
- 28. Internal Iliac Vein • Majority of pelvic venous drainage in pelvic region • Lies lateral to internal iliac artery • Formed near the greater sciatic foramen • Ascends anterior to sacroiliac joint • Joins with external iliac vein to form the common iliac vein • Tributaries • Correspond with the branches of the internal iliac artery • Except iliolumbar vein • Which drains into common iliac
- 29. Other veins • Median sacral vein • Left common iliac vein • Superior rectal vein • Becomes inferior mesenteric vein • After crossing common iliac artery • Drains into splenic vein • Ovarian vein • Formed by • Collection of pampiniform plexus around ovarian artery • Drains into • Right side into IVC • Left side into left renal vein