Median sacral artery
Median Sacral Artery
The Median Sacral Artery (pronunciation: /ˈmiːdiən ˈseɪkrəl ˈɑːrtəri/) is a small artery in the human body that descends from the aorta to supply blood to the sacrum and coccyx.
Etymology
The term "Median Sacral Artery" is derived from its anatomical position and function. "Median" (from Latin medius meaning "middle") refers to its central location, "sacral" (from Latin sacrum meaning "sacred bone") refers to the bone it supplies, and "artery" (from Greek arteria meaning "windpipe, artery") refers to its function as a blood vessel.
Anatomy
The Median Sacral Artery is usually the last unpaired branch of the abdominal aorta, arising just above the aortic bifurcation. It descends in the midline anterior to the sacrum and coccyx, giving off several small branches to these bones and to the surrounding connective tissue and muscles. It anastomoses with the lateral sacral arteries, branches of the internal iliac artery.
Related Terms
- Abdominal Aorta: The largest artery in the abdomen that supplies blood to many of the abdominal and pelvic organs.
- Sacrum: The large, triangular bone at the base of the spine that forms by the fusing of sacral vertebrae S1–S5.
- Coccyx: The final segment of the human vertebral column, also known as the tailbone.
- Lateral Sacral Arteries: Arteries that arise from the posterior division of the internal iliac artery and supply the muscles and skin in the sacral region.
- Internal Iliac Artery: A major artery that supplies blood to the pelvic organs, gluteal region, and medial compartment of the thigh.
External links
- Medical encyclopedia article on Median sacral artery
- Wikipedia's article - Median sacral artery
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