| 单词 | retina |
| 释义 | retina (once / 4152 pages) n A retina is a light-sensitive part of an eyeball that sends nerve impulses to to the brain so a picture of what the eye is seeing can be formed. Your retina lines the inside of your eye — it's a thin membrane filled with cells that are extremely sensitive to light. It's your retina that allows your brain to actually see what you're looking at, by sending messages through your optic nerve. In Latin, retina means "net-like layer," from the root word rete, or "net." WORD FAMILYretina: retinae, retinal, retinas USAGE EXAMPLESHe told her she needed to see a retina specialist immediately, but there were only three in the state. Los Angeles Times(Dec 22, 2016) This disease, which is often passed down through families, destroys the light-sensing cells in the retina. BBC(Dec 21, 2016) The axons need to reach along the optic nerve to connect the retina to the brain. Nature(Dec 06, 2016) n the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve Hyper membrane, tissue layer a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants |
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