Choroid: meaning, definitions and examples
๐๏ธ
choroid
[ หkษหrษษชd ]
anatomy structure
The choroid is a vascular layer of the eye containing connective tissues and lying between the retina and the sclera. Its primary function is to supply nutrients and oxygen to the outer layers of the retina. Additionally, the choroid plays a crucial role in absorbing excess light, thus preventing light scattering within the eye. This anatomical structure is rich in blood vessels, which are essential for sustaining the health of the retinal cells.
Synonyms
choroidal layer, uvea, vascular tunic
Examples of usage
- The choroid helps maintain the health of the retina.
- An issue with the choroid can affect vision.
- Surgeons sometimes need to access the choroid during eye surgeries.
Translations
Translations of the word "choroid" in other languages:
๐ต๐น corรณide
๐ฎ๐ณ เคเฅเคฐเฅเคเคก
๐ฉ๐ช Aderhaut
๐ฎ๐ฉ koroid
๐บ๐ฆ ั ะพัะพัะด
๐ต๐ฑ naczyniรณwka
๐ฏ๐ต ่็ตก่
๐ซ๐ท choroรฏde
๐ช๐ธ corรณides
๐น๐ท koroid
๐ฐ๐ท ๋งฅ๋ฝ๋ง
๐ธ๐ฆ ุงูู ุดูู ูุฉ
๐จ๐ฟ cรฉvnatka
๐ธ๐ฐ cรฉvnatka
๐จ๐ณ ่็ป่
๐ธ๐ฎ horoid
๐ฎ๐ธ รฆรฐarhimna
๐ฐ๐ฟ าะพัะพะธะดะฐ
๐ฌ๐ช แฅแแ แแแแ
๐ฆ๐ฟ koroid
๐ฒ๐ฝ coroides
Etymology
The term 'choroid' originates from the Greek word 'choroides', which means 'like a membrane'. In historical texts, it was first referenced in the context of the anatomy of the eye, emphasizing its membranous characteristics. The word has been used in medical literature since the early 19th century as the understanding of eye anatomy advanced. Initially, the choroid was simply seen as a protective layer of the eye, but as research progressed, its functions related to the vascular supply became more recognized. The emphasis on its role in visual physiology continued to develop, leading to modern uses of the term in both medical and biological discussions.
Word Frequency Rank
Positioned at #21,388, this word is part of extensive vocabulary. It's relatively rare in general usage but may be important in specific fields or formal writing.
- ...
- 21385 smog
- 21386 carpeted
- 21387 lunacy
- 21388 choroid
- 21389 regionalism
- 21390 kangaroo
- 21391 campaigned
- ...