Definitions for retinas
reti·nas

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1. retinasnoun

   A

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1. retinas

   The retina (from Latin: rete "net") is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs. The optics of the eye create a focused two-dimensional image of the visual world on the retina, which then processes that image within the retina and sends nerve impulses along the optic nerve to the visual cortex to create visual perception. The retina serves a function which is in many ways analogous to that of the film or image sensor in a camera. The neural retina consists of several layers of neurons interconnected by synapses and is supported by an outer layer of pigmented epithelial cells. The primary light-sensing cells in the retina are the photoreceptor cells, which are of two types: rods and cones. Rods function mainly in dim light and provide monochromatic vision. Cones function in well-lit conditions and are responsible for the perception of colour through the use of a range of opsins, as well as high-acuity vision used for tasks such as reading. A third type of light-sensing cell, the photosensitive ganglion cell, is important for entrainment of circadian rhythms and reflexive responses such as the pupillary light reflex. Light striking the retina initiates a cascade of chemical and electrical events that ultimately trigger nerve impulses that are sent to various visual centres of the brain through the fibres of the optic nerve. Neural signals from the rods and cones undergo processing by other neurons, whose output takes the form of action potentials in retinal ganglion cells whose axons form the optic nerve. Several important features of visual perception can be traced to the retinal encoding and processing of light. In vertebrate embryonic development, the retina and the optic nerve originate as outgrowths of the developing brain, specifically the embryonic diencephalon; thus, the retina is considered part of the central nervous system (CNS) and is actually brain tissue. It is the only part of the CNS that can be visualized noninvasively. Much like the rest of the brain is isolated from the vasular system via the blood–brain barrier, the retina is similarly protected by the blood–retinal barrier.

Anagrams for retinas »

1. antsier

2. in tears

3. nastier

4. resiant

5. restain

6. retains

7. retsina

8. rinsate

9. stainer

10. starnie

11. stearin

How to pronounce retinas?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say retinas in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of retinas in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of retinas in Pythagorean Numerology is: 5

Examples of retinas in a Sentence

1. Pravin Dugel:

   With Beovu, greater fluid reduction was demonstrated through larger decreases in retinal thickness and a higher proportion of patients with drier retinas, coupled with the potential to treat patients with quarterly injections, this approval may change the way we approach the treatment of wet AMD.

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References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Retinas
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Retinas