VENA CHORIOIDEA Meaning and
Definition
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The vena chorioidea is a term used in medical anatomy to describe a network of veins located within the choroid layer of the eye. The choroid layer is a highly vascularized tissue located between the retina and the sclera of the eye. It contains an intricate network of blood vessels that supply oxygen and nutrients to the outer layers of the retina.
The vena chorioidea specifically refers to the veins within this network that drain deoxygenated blood away from the choroid layer. These veins collect the blood from smaller vessels called the choriocapillaris and ultimately transport it back to the systemic circulation.
The vena chorioidea typically runs parallel to the arteries of the choroid, referred to as the arteriae chorioidea, forming a complex system of blood flow within the choroid layer. This arrangement is crucial for maintaining a constant supply of oxygen and nutrients to the various layers of the choroid and retina.
In addition to its role in blood drainage, the vena chorioidea also plays a role in regulating intraocular pressure. By controlling the outflow of fluid from the eye, the vena chorioidea helps maintain the appropriate pressure within the eyeball.
Overall, the vena chorioidea is an essential component of the eye's vascular system, ensuring the proper functioning of the choroid layer and providing vital support for the health and functionality of the retina.
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Drains the lateral ventricle and chorioid plexus and unites with the terminal vein to form the v. cerebri interna, or Galen's vein.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for VENA CHORIOIDEA
- vejna choroidea
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Etymology of VENA CHORIOIDEA
The word "vena chorioidea" has its etymology rooted in Latin and Greek.
The term "vena" derives from the Latin word "vēna", which means "vein" in English. This is a common medical term used to refer to blood vessels that carry blood back to the heart.
The word "chorioidea" is a combination of two Greek words: "chorion" meaning "skin" or "membrane" and "idea" meaning "like" or "resembling". In anatomy, the chorioidea refers to the vascular layer of the eye that lies between the retina and the sclera.
So, "vena chorioidea" combines the Latin and Greek roots to specifically refer to the veins within the vascular layer of the eye.
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