scleral veins
Học thuậtThân thiện
Definition
Noun (plural: scleral veins) Small blood vessels that are tributaries (branches) of the anterior ciliary veins. Their primary function is to collect and carry away deoxygenated blood from the sclera, which is the dense, white, fibrous outer layer of the eyeball.
Usage
The term is used in medical, anatomical, and ophthalmological contexts to describe a specific part of the eye's vascular (blood vessel) system. - The scleral veins are part of the eye's drainage system. - Inflammation can affect the scleral veins.
Examples
- An ophthalmologist examined the patient's scleral veins for signs of increased pressure.
- The model of the eye showed how the scleral veins connect to the larger anterior ciliary veins.
- Blockage in the scleral veins can contribute to certain eye conditions.
Advanced Usage
- Clinical significance: In medical diagnostics, the appearance of engorged or inflamed scleral veins can be an indicator of underlying ocular or systemic vascular issues.
Variants and Related Words
- Sclera (noun): The white outer coat of the eyeball, which the scleral veins drain.
- Anterior ciliary veins (noun): The larger veins into which the scleral veins empty.
- Episcleral veins (noun): Veins located on the surface of the sclera; often discussed in relation to scleral veins in anatomical studies.
Synonyms
- Venae sclerales (noun): The formal Latin anatomical term.
Notes on Meaning
This term has a single, specific anatomical meaning. It does not have different general meanings, idioms, or phrasal verbs, as it is a precise scientific term.
Noun
- tributaries of the anterior ciliary veins that drain the sclera of the eye