choroid coat
Definition
Noun: A highly vascular membrane in the eye, located between the retina and the sclera. Its dark pigmentation serves to minimize the scattering of light inside the eye, contributing to clear vision.
Usage
The term 'choroid coat' is used in anatomical and medical contexts to describe a specific layer of the eye. It is a technical term. * The ophthalmologist explained that inflammation of the choroid coat is called choroiditis. * In many animals, the choroid coat contains a reflective layer called the tapetum lucidum.
Advanced Usage
- As part of the uvea: The choroid coat is considered part of the uveal tract, along with the iris and the ciliary body.
- Uveitis is an inflammation that can affect the choroid coat and other parts of the uvea.
Variants and Related Words
- Choroid (noun): The more common and concise term for 'choroid coat'. The two terms are synonymous in medical terminology.
- The blood vessels in the choroid supply nutrients to the outer layers of the retina.
Synonyms
- Choroid (noun): The standard synonym.
- Choroidea (noun): The Latin-derived anatomical term.
Related Terms (Not Synonyms)
- Retina (noun): The light-sensitive layer that the choroid coat supports.
- Sclera (noun): The white, outer protective layer of the eye, lying just outside the choroid coat.
- Uvea (noun): The middle layer of the eye, which includes the choroid coat.
Noun
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a highly vascular membrane in the eye between the retina and the sclera; a dark pigmentation minimizes the scattering of light inside the eye
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