vena hemizygos
Noun: A small vein that drains blood from the lower left side of the body. It is a continuation of the left ascending lumbar vein. It crosses the body's midline near the eighth thoracic vertebra to connect with the larger azygos vein, which then carries the blood back to the heart.
This is a specific anatomical term used in medical and biological contexts to describe a particular part of the human venous system. It is not used in everyday conversation.
Examples: * The vena hemizygos was clearly visible in the anatomical dissection. * Surgeons must be aware of the location where the vena hemizygos joins the azygos vein. * A blockage in the vena hemizygos can affect venous return from the lower left thorax.
- The term is often used in detailed descriptions of thoracic venous anatomy, typically alongside its counterpart, the .
- In medical imaging reports, a radiologist might note: "The vena hemizygos appears patent and of normal caliber."
- Hemiazygos vein: This is a direct synonym for vena hemizygos. The terms are used interchangeably.
- Azygos vein: The major vein on the right side of the body with which the vena hemizygos connects.
- Accessory hemiazygos vein: Another vein on the left side, located above the vena hemizygos, which also drains into the azygos vein.
- Hemiazygos vein
This term has only one specific meaning in human anatomy. There are no idiomatic or figurative uses.
- a continuation of the left ascending lumbar vein; crosses the midline at the 8th vertebra and empties into the azygos vein