21 results found

Search Results for: retinal

Retinal

retinal 1. (Science: anatomy) Pertaining to the retina. 2. (Science: biochemistry) The aldehyde of retinol, derived by the... Read More

Tapetum lucidum

Definition noun, plural: tapeta lucida A layer of tissue in the choroid or in the retinal pigment epithelium of the eye of... Read More

Wagners syndrome

Definition noun (1) A degenerative condition of the vitreous and retinal parts of the eye, and may eventually lead to... Read More

Retina

retina light sensitive layer of the eye. In vertebrates, looking from outside, there are four major cell layers: (i) the... Read More

Wagners disease

Definition noun (pathology) A degenerative condition of the vitreous and retinal parts of the eye, and may eventually lead... Read More

Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More

Rhodopsin

rhodopsin (Science: protein) light sensitive pigment formed from retinal linked through a Schiff's base to opsin: rhodopsin... Read More

Cyclic guanosine monophosphate

Definition noun plural: cyclic guanosine monophosphates (biochemistry) A cyclic form of guanosine monophosphate (chemical... Read More

Retinol

Definition noun A yellow, fat-soluble vitamin with a formula: C20H30O, present in fish oils and green vegetables, and... Read More

Photoreceptor

Photoreceptor (Science: cell biology) A specialised cell type in a multicellular organism that is sensitive to light. This... Read More

Cone

Cone 1. (Science: plant biology) in gymnosperms and club mosses, a group of sporophylls arranged compactly on a central... Read More

Macula lutea

Macula lutea An oval area in the retina, 3 to 5 mm in diameter, usually located temporal to the posterior pole of the eye... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Ciliary body

Ciliary body (Science: anatomy) tissue that includes the group of muscles that act on the eye lens to produce accommodation... Read More

Isomerase

Definition noun, plural: isomerases (biochemistry) An enzyme that catalyzes the isomerization changes in a molecule, thereby... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Dopamine

Definition noun, plural: dopamines 3,4-dihydroxyphenethylamine (chemical formula: C8H11NO2); a neurotransmitter or a hormone... Read More

Circinate retinopathy

Circinate retinopathy a retinal degeneration marked by a girdle of sharply defined white exudates around an edematous... Read More

Epithelium

An epithelium is a type of animal tissue made up of densely packed cells (called epithelial cells) that rest on a basement... Read More

Terrys syndrome

Terry's syndrome --> retinopathy of prematurity (Science: ophthalmology, paediatrics) A bilateral retinopathy occurring... Read More

Blindness – Evolutionary regression? Maybe not!

The recent Netflix's hit flick, Bird Box, surely startled the viewers with the thrilling scenarios revolving around the... Read More