Ganglion cell layer
Ganglion Cell Layer
The Ganglion Cell Layer (GCL), pronounced as /ˈɡæŋɡliən/ /sɛl/ /ˈleɪər/, is a layer of the retina that contains retinal ganglion cells. The term "ganglion" is derived from the Greek word "ganglion," which means "knot" or "swelling," while "cell layer" is derived from the Latin "cellula" and "layer" from the Old English "leger."
Structure
The Ganglion Cell Layer is one of the ten layers of the retina, located near the inner surface. It is composed of retinal ganglion cells, which are the final output neurons of the vertebrate retina. These cells receive visual information from photoreceptors via two intermediate neuron types: bipolar cells and amacrine cells.
Function
The primary function of the Ganglion Cell Layer is to transmit visual information from the retina to the brain. The axons of the retinal ganglion cells form the optic nerve, which carries this information to the brain for further processing.
Related Terms
- Retina: The light-sensitive layer of tissue at the back of the inner eye.
- Retinal Ganglion Cells: The final output neurons in the vertebrate retina.
- Photoreceptors: The cells in the retina that respond to light.
- Bipolar Cells: A type of neuron located in the middle layer of the retina.
- Amacrine Cells: Interneurons in the retina.
- Optic Nerve: The nerve that transmits visual information from the retina to the brain.
External links
- Medical encyclopedia article on Ganglion cell layer
- Wikipedia's article - Ganglion cell layer
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