VENA HEMIAZYGOS ACCESSORIA Meaning and
Definition
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Vena Hemiazygos Accessoria is a medical term used to describe an additional vein that is occasionally present in the human body's circulatory system. Specifically, it refers to an accessory or secondary vein that runs alongside the primary hemiazygos vein.
The hemiazygos vein is part of the greater systemic venous system and is responsible for draining deoxygenated blood from the posterior abdominal wall, thoracic region, and the vertebral column. It ascends on the left side of the vertebral column and then crosses over to the right side of the body to join the azygos vein. However, in some individuals, an accessory vein can also form parallel to the existing hemiazygos vein.
The vena hemiazygos accessoriaserves as an alternative drainage pathway, providing an additional route for deoxygenated blood to return to the heart. It generally starts from the left ascending lumbar vein or the left renal vein and joins the main hemiazygos vein. Although less common than the primary hemiazygos vein, the accessory vein can vary in length and size among individuals.
Overall, the presence of a vena hemiazygos accessoriais typically considered a normal anatomical variation. Knowledge of its existence is crucial for medical professionals, as it can have implications during surgical procedures, radiological imaging, or when evaluating potential abnormalities in the circulatory system.
Common Misspellings for VENA HEMIAZYGOS ACCESSORIA
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Similar spelling words for VENA HEMIAZYGOS ACCESSORIA
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