Download Anatomy - INERNAL ILIAC ARTERY

INERNAL ILIAC ARTERY
LEARNING OBJECTIVES
By the end of the lecture, the student should be able to :
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Describe the course of the common iliac artery.
Identify divisions of internal iliac by their relationships to pelvic organs
or wall structures.
COMMON ILIAC ARTERY
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The left and right common iliac arteries arise from the aorta at the forth
lumber vertebra.
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The common iliac arteries bifurcate to form the external and internal
iliac arteries
EXTERNAL ILIAC ARTERY
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It arises just above the pelvic brim
It exits the pelvic cavity below the inguinal ligament and becomes the
femoral artery.
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INTERNAL ILIAC ARTERY
It supplies both the visceral and somatic structures of the pelvis
It supplies
Pelvic walls
Pelvic viscera
And the perineum
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BRANCHES
It divides into anterior and posterior divisions.
POSTERIOR DIVISION
It provides only the somatic branches.
ILIOLUMBER ARTERY
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It courses upward behind the external iliac arteries
At the medial border of the psoas major it divides into the lumber and
the iliac branches
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The lumber artery supplies the psoas and quaderatus lumbroum ,
lower vertebra of lumber region and dural sac
LATERAL SACRAL ARTERY
Supplies the region of sacrum.
SUPERIOR GLUTEAL ARTERY
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Largest branch of the internal iliac artery
It leaves the pelvic cavity through the greater scatic foramen above the
piriformis
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It supplies the portion of the gluteus maximus , medius and minimus
and the hip joint.
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ANTERIOR DIVISION
Supplies both the somatic and visceral structures.
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INFERIOR GLUTEAL ARTERY
Supplies somatic structures of the buttock
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Inside the pelvic cavity it supplies the portion of the coccygeous
muscle, piriformis and levator ani
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It leaves inferior to the piriformis and supply the hip joint and lateral
rotator muscles.
INTERNAL PUDENDAL ARTERY
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It supplies the somatic structures in the perineum
It exits the pelvis through the greater sciatic foramen
It enters the ischiorectal fossa through the lesser sciatic foramen.
OBTURATOR ARTERY
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Supplies the somatic structures in the anterolateral thigh
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OBTURATOR ARTERY
It leaves the pelvis through the obturator canal in the obturator foramen
to supply the proximal portion of the adductor muscles
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It gives artery to the ligamentum teres to the femoral head.
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UMBLICAL ARTERY
Retains a lumen for a short distance from the internal iliac artery
It gives branches to the urinary bladder
The superior vesical artery supplies the bladder
Medial umbilical ligaments are the remnants of the medial umbilical
artery.
UTERINE ARTERY
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Homologous of deferential artery in the male
It passes superior to the ureters in the transverse cervical ligament and
ascends within the broad ligaments to reach the uterus
Tubal to the oviduct
Vaginal to the vagina
DEFERENTIAL ARTERY
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It supplies the vas deferens and epididymis
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It passes superior to the ureters and in the inguinal canal to
anastomosis with the spermatic artery
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MIDDLE RECTAL ARTERY
Supplies the rectum
Anastomosis with the inferior mesenteric artery
By way of the superior rectal artery and internal pudendal artery
through the inferior rectal artery
INFERIOR VESICAL ARTERY
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Supply the neck of the urinary bladder
In the male portion of the prostate and seminal vesicle
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