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Glite Dictionary
posterior cardinal vein

posterior cardinal vein

9.5
A large vein in an animal embryo that carries blood from the tail and back to the heart
  • noun
  • Specialized
translation icon : vena cardinal posterior
  • The posterior cardinal vein plays a crucial role in draining blood from the embryo's tail to the heart.

Examples

  • The posterior cardinal vein plays a crucial role in blood circulation during embryonic development.

  • Researchers observed abnormalities in the posterior cardinal vein of several specimens.

  • In some vertebrates, the posterior cardinal vein regresses as development progresses.

  • The posterior cardinal vein is essential for fetal circulation.

  • In embryos, the posterior cardinal veins help transport blood.

  • In embryos, the posterior cardinal vein is vital for transporting blood from the caudal region to the heart.

  • Researchers noted that abnormalities in the posterior cardinal vein can affect overall embryonic development.

Surface Forms

posterior cardinal vein singular
posterior cardinal veins plural

Morphology

posterior + cardinal + vein

The phrase is compositionally built from 'posterior' (at the rear) + 'cardinal' (primary/major) + 'vein' (blood vessel), so its core meaning — a major vein located toward the rear — is directly derivable from the constituents. Although it is a technical anatomical term, a B1 learner who knows the constituent words can infer the general sense without prior exposure.

Etymology

Posterior cardinal vein breaks into posterior, meaning 'back' or tail area, cardinal, meaning 'main' or important, and vein, a 'tube for blood'. So the name gives a clear image: it is the main vein at the back of a developing animal that carries blood from the tail toward the heart, which is why the term refers to this major blood vessel in early development.