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retina    音標拼音: [r'ɛtənə]
n. 視網膜

視網膜

retina
網膜

retina
n 1: the innermost light-sensitive membrane covering the back
wall of the eyeball; it is continuous with the optic nerve

Retina \Ret"i*na\, n. [NL., from L. rete a net. Cf. {Reticule}.]
(Anat.)
The delicate membrane by which the back part of the globe of
the eye is lined, and in which the fibers of the optic nerve
terminate. See {Eye}.
[1913 Webster]

Note: The fibers of the optic nerve and the retinal blood
vessels spread out upon the front surface of the
retina, while the sensory layer (called Jacob's
membrane), containing the rods and cones, is on the
back side, next the choroid coat.
[1913 Webster]

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英文字典中文字典相關資料:
  • Retina of the Eye: What It Is, Function Anatomy - Cleveland Clinic
    The retina is the layer inside your eye that detects light and converts it into signals your brain can use It’s critical for your vision Your retinas are what turn visible light into a form your brain can use
  • The Retina Center of Western Colorado
    At our state-of-the-art office we provide digital retinal photography, angiography, optical coherence tomography, ocular ultrasound, cryotherapy, and full spectrum retinal laser treatment
  • Retina - Wikipedia
    The retina (from Latin rete 'net'; pl retinae or retinas) is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs
  • Retinal diseases - Symptoms and causes - Mayo Clinic
    Retinal diseases can affect any part of your retina, a thin layer of tissue on the inside back wall of the eye The retina contains millions of light-sensitive cells, called rods and cones, and other nerve cells that receive and organize visual information
  • Retina: Function, Location, Health Problems, and More - WebMD
    What Is the Retina? The retina is the layer of cells positioned at the back of your eyeball This layer senses the light that comes into your eyeball and sends signals to your brain The key
  • Retina - American Academy of Ophthalmology
    The retina is the layer of cells lining the back wall inside the eye This layer senses light and sends signals to the brain so you can see Several parts of the eye are associated with the retina They include: Peripheral retina; Macula; Fovea; Photoreceptors; Rods; Cones
  • Anatomy, Head and Neck: Eye Retina - StatPearls - NCBI Bookshelf
    The retina is a layer of photoreceptors cells and glial cells within the eye that captures incoming photons and transmits them along neuronal pathways as both electrical and chemical signals for the brain to perceive a visual picture
  • Retina: MedlinePlus Medical Encyclopedia
    The retina is the light-sensitive layer of tissue at the back of the eyeball Images that come through the eye's lens are focused on the retina The retina then converts these images to electric signals and sends them along the optic nerve to the brain The retina most often looks red or orange because there are many blood vessels right behind it
  • Retina - Definition and Detailed Illustration - All About Vision
    The retina is the sensory membrane that lines the inner surface of the back of the eyeball It's composed of several layers, including one that contains specialized cells called photoreceptors There are two types of photoreceptor cells in the human eye — rods and cones





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