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Glite Dictionary
vena hemizygos

vena hemizygos

9.9
A vein on the left side of the spine that joins the azygos vein at the eighth chest vertebra
  • noun
  • /ˈviːnə ˌhɛmɪˈzaɪɡəs/
  • Specialized
translation icon : vena hemizygos
  • The vena hemizygos plays a crucial role in draining blood from the left posterior thoracic wall.

Examples

  • If the vena hemizygos is blocked, collateral circulation through the azygos vein may increase.

  • During surgery, careful identification of the vena hemizygos helps prevent accidental injury.

  • The vena hemizygos is crucial for venous drainage.

  • In anatomy, the vena hemizygos plays a vital role.

  • The vena hemizygos connects to the azygos vein, providing an important pathway for blood circulation.

  • Surgeons must locate the vena hemizygos during the operation to avoid damaging nearby structures.

  • Understanding the anatomy of the vena hemizygos is essential for medical students specializing in vascular physiology.

Synonyms

hemizygos vein
vsvena hemizygos
  • Specialized
8.8

A left-side blood vessel that crosses near the eighth spine bone and joins a back vein

is the same vein but defined by its crossing at the eighth vertebra
hemizygous vein
vsvena hemizygos
  • Specialized
9.6

A blood vessel running up the left side of the spine to join a large chest vein

is the same but gives no exact vertebral level for the crossing

Surface Forms

vena hemizygos singular
vena hemizygoses plural

Morphology

vena + hemizygos

Although 'vena' (vein) is transparent, the compound uses the specialized Latin/Greek term 'hemizygos', which is technical and not analyzable by an average B1 learner; the full anatomical sense (a specific unilateral vein that crosses at a particular vertebral level) is domain-specific rather than compositionally predictable. Because one constituent is obscure and the overall label denotes a precise medical configuration, the meaning cannot be derived from everyday word knowledge.

Etymology

Vena hemizygos comes from Latin and Greek words: vena means 'vein', hemi- means 'half', and zygos means 'pair'. Imagine a pair of veins where the left one is only a 'half'—the vena hemizygos is that smaller vein on the left side of the spine that crosses to join the main right-side vein, so the name helps you remember it is a left 'half' vein.