What layer are ganglion cells in?
The ganglion cell layer (ganglionic layer) is a layer of the retina that consists of retinal ganglion cells and displaced amacrine cells. In the macula lutea, the layer forms several strata….
|Ganglion cell layer|
What supplies retinal blood?
The retina is supplied by the central retinal artery and the short posterior ciliary arteries (Fig 2.3). The central retinal artery travels in or beside the optic nerve as it pierces the sclera then branches to supply the layers of the inner retina (i.e., the layers closest to the vitreous compartment).
What layer of the retina are blood vessels in?
The arteries pierce the sclera around the optic nerve and fan out to form the three vascular layers in the choroid: outer (most scleral), medial and inner (nearest Bruch’s membrane of the pigment epithelium) layers of blood vessels.
What are the 10 layers of retina?
Layers from outside in: (1) retinal pigment epithelium; (2) rods and cones (photoreceptors); (3) external limiting membrane; (4) outer nuclear layer; (5) outer plexiform layer; (6) inner nuclear layer; (7) inner plexiform layer; (8) ganglion cell layer; (9) nerve fiber layer; (10) inner limiting membrane; (11) vitreous.
What are the 2 layers of the retina?
The cellular layers of the retina are as follows: 1) The pigmented epithelium, which is adjacent to the choroid, absorbs light to reduce back reflection of light onto the retina, 2) the photoreceptor layer contains photosensitive outer segments of rods and cones, 3) the outer nuclear layer contains cell bodies of the …
What causes ganglion cell loss?
In acute diseases such as ischaemic optic neuropathy or optic neuritis, or in chronic diseases such as glaucoma, injury to RGC axons in the optic nerve may lead to rapid RGC death. Retinal ischaemia and retinal artery or vein occlusions directly injure RGC cell bodies in the ganglion cell layer.
What are 10 layers of retina?
How many cells are in the ganglion cell layer?
Lee Ann Remington OD, MS, FAAO, in Clinical Anatomy and Physiology of the Visual System (Third Edition), 2012 The ganglion cell layer is generally a single cell thick except near the macula, where it might be 8 to 10 cells thick, and at the temporal side of the optic disc, where it is 2 cells thick.
Where are ganglion cells located in the retina?
The retinal ganglion cells have their dendrites in the inner plexiform layer and their cell bodies in the ganglion cell layer. Retinal ganglion cells project their axons across the inner surface of the retina towards the optic disk, where the optic nerve is formed.
Why are ganglion cells important to the optic nerve?
The greater number of ganglion cells means more synaptic interaction in a thicker IPL and greater numbers of ganglion cell axons coursing to the optic nerve in the nerve fibre layer (Fig. 9). 3. Muller glial cells. Fig. 11.
Where does visual processing occur in the ganglion cell layer?
Some visual processing occurs in the retina (bipolar layer, etc.). The ganglion cells probably do not exclusively mediate the function assigned to them but they are largely responsible for carrying it to the brain. HRP, high resolution perimetry; SWAP, short-wavelength automated perimetry. Courtesy of Chris Johnson.