Deep circumflex iliac artery
Encyclopedia
The deep circumflex iliac artery (or deep iliac circumflex artery) is an artery
in the pelvis
that travels along the iliac crest
of the pelvic bone.
nearly opposite the origin of the inferior epigastric artery
.
It ascends obliquely lateralward behind the inguinal ligament
, contained in a fibrous sheath formed by the junction of the transversalis fascia
and iliac fascia
, to the anterior superior iliac spine
, where it anastomoses with the ascending branch of the lateral femoral circumflex artery
.
It then pierces the transversalis fascia
and passes along the inner lip of the crest of the ilium
to about its middle, where it perforates the transversus abdominis muscle, and runs backward between that muscle and the internal oblique, to anastomose with the iliolumbar artery
and the superior gluteal artery
.
Opposite the anterior superior spine of the ilium
it gives off a large ascending branch, which ascends between the internal oblique and transversus abdominis muscles, supplying them, and anastomosing with the lumbar arteries
and inferior epigastric artery
.
This artery serves as the primary blood supply to the anterior iliac crest bone flap.
Artery
Arteries are blood vessels that carry blood away from the heart. This blood is normally oxygenated, exceptions made for the pulmonary and umbilical arteries....
in the pelvis
Pelvis
In human anatomy, the pelvis is the lower part of the trunk, between the abdomen and the lower limbs .The pelvis includes several structures:...
that travels along the iliac crest
Iliac crest
-External links: - "Superficial muscles of the gluteal region and posterior thigh." - "Anterior Abdominal Wall: Osteology and Surface Anatomy " - "The Back, Posterior View" * *...
of the pelvic bone.
Course
The deep circumflex iliac artery arises from the lateral aspect of the external iliac arteryExternal iliac artery
The external iliac arteries are two major arteries which bifurcate off the common iliac arteries anterior to the sacroiliac joint of the pelvis. They proceed anterior and inferior along the medial border of the psoas major muscles...
nearly opposite the origin of the inferior epigastric artery
Inferior epigastric artery
In human anatomy, inferior epigastric artery refers to the artery that arises from the external iliac artery and anastomoses with the superior epigastric artery...
.
It ascends obliquely lateralward behind the inguinal ligament
Inguinal ligament
The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. Its anatomy is very important for operating on hernia patients.-Anatomy:...
, contained in a fibrous sheath formed by the junction of the transversalis fascia
Transversalis fascia
The transversalis fascia is a thin aponeurotic membrane which lies between the inner surface of the Transversus abdominis and the extraperitoneal fascia....
and iliac fascia
Iliac fascia
The iliac fascia is a fascia in the pelvic area of the human body.It has the following connections:* laterally, to the whole length of the inner lip of the iliac crest....
, to the anterior superior iliac spine
Anterior superior iliac spine
The anterior superior iliac spine is an important landmark of surface anatomy. It refers to the anterior extremity of the iliac crest of the pelvis, which provides attachment for the inguinal ligament, and the sartorius muscle...
, where it anastomoses with the ascending branch of the lateral femoral circumflex artery
Lateral femoral circumflex artery
The lateral circumflex femoral artery is an artery in the upper thigh.-Structure:...
.
It then pierces the transversalis fascia
Transversalis fascia
The transversalis fascia is a thin aponeurotic membrane which lies between the inner surface of the Transversus abdominis and the extraperitoneal fascia....
and passes along the inner lip of the crest of the ilium
Ilium (bone)
The ilium is the uppermost and largest bone of the pelvis, and appears in most vertebrates including mammals and birds, but not bony fish. All reptiles have an ilium except snakes, although some snake species have a tiny bone which is considered to be an ilium.The name comes from the Latin ,...
to about its middle, where it perforates the transversus abdominis muscle, and runs backward between that muscle and the internal oblique, to anastomose with the iliolumbar artery
Iliolumbar artery
The iliolumbar artery is the first branch of the posterior trunk of the internal iliac artery.-Course:The iliolumbar artery turns upward behind the obturator nerve and the external iliac artery and vein, to the medial border of the psoas major, behind which it divides into:* Lumbar branch of...
and the superior gluteal artery
Superior gluteal artery
The superior gluteal artery is the largest branch of the internal iliac artery, and appears to be the continuation of the posterior division of that vessel....
.
Opposite the anterior superior spine of the ilium
Ilium (bone)
The ilium is the uppermost and largest bone of the pelvis, and appears in most vertebrates including mammals and birds, but not bony fish. All reptiles have an ilium except snakes, although some snake species have a tiny bone which is considered to be an ilium.The name comes from the Latin ,...
it gives off a large ascending branch, which ascends between the internal oblique and transversus abdominis muscles, supplying them, and anastomosing with the lumbar arteries
Lumbar arteries
The lumbar arteries are in parallel with the intercostals.They are usually four in number on either side, and arise from the back of the aorta, opposite the bodies of the upper four lumbar vertebræ....
and inferior epigastric artery
Inferior epigastric artery
In human anatomy, inferior epigastric artery refers to the artery that arises from the external iliac artery and anastomoses with the superior epigastric artery...
.
This artery serves as the primary blood supply to the anterior iliac crest bone flap.