Preferred Label : median sacral artery;
Uberon definition : The median sacral artery (or middle sacral artery) is a small vessel, which arises
from the back of the aorta, a little above its bifurcation. It descends in the middle
line in front of the fourth and fifth lumbar vertebræ, the sacrum and coccyx, and
ends in the glomus coccygeum (coccygeal gland). From it, minute branches are said
to pass to the posterior surface of the rectum. On the last lumbar vertebra it anastomoses
with the lumbar branch of the iliolumbar artery; in front of the sacrum it anastomoses
with the lateral sacral arteries, and sends offsets into the anterior sacral foramina.
It is crossed by the left common iliac vein, and is accompanied by a pair of venæ
comitantes; these unite to form a single vessel, which opens into the left common
iliac vein.;
Uberon synonym : Middle sacral artery;
Uberon related term : middle sacral artery; coccygeal branches; middle sacral;
Origin ID : 0005464;
Automatic exact mappings (from CISMeF team)
- Uberon cross reference
- supplies
The median sacral artery (or middle sacral artery) is a small vessel, which arises
from the back of the aorta, a little above its bifurcation. It descends in the middle
line in front of the fourth and fifth lumbar vertebræ, the sacrum and coccyx, and
ends in the glomus coccygeum (coccygeal gland). From it, minute branches are said
to pass to the posterior surface of the rectum. On the last lumbar vertebra it anastomoses
with the lumbar branch of the iliolumbar artery; in front of the sacrum it anastomoses
with the lateral sacral arteries, and sends offsets into the anterior sacral foramina.
It is crossed by the left common iliac vein, and is accompanied by a pair of venæ
comitantes; these unite to form a single vessel, which opens into the left common
iliac vein.
