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Choroid Meaning: Definition, Examples, and Translations

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choroid

[ˈkɔːrɔɪd ]

Definition

Context #1 | Noun

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

To see the translation, please select a language from the options available.

Interesting Facts

Anatomy

  • The choroid is located between the retina and the sclera, acting as a bridge supplying blood to the outer layers of the retina.
  • This layer contains many blood vessels, which provide oxygen and nutrients essential for the functioning of the eye.

Diseases

  • Conditions like choroiditis can lead to inflammation and affect vision, highlighting the choroid's importance in eye health.
  • Some eye diseases, such as age-related macular degeneration, involve changes in the choroid and can severely impact vision.

Science

  • Researchers study the choroid to understand better how diseases affect the eye and to develop new treatments.
  • Advanced imaging techniques allow scientists to visualize the choroid, enhancing diagnostic abilities in ophthalmology.

Art and Culture

  • While not commonly referenced, the choroid serves as a reminder of the complexity of biological structures so often overlooked in art and literature.
  • The beauty of human anatomy has inspired various artists and scientists to depict the intricate workings of the eye in their work.

Origin of 'choroid'

Main points about word origin

  • The term 'choroid' comes from the Greek word 'choroides,' meaning 'like a membrane,' referencing its membrane-like structure.
  • It was first used in the early 19th century, showing how medical terminology can trace back to ancient languages.

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.