Outer plexiform layer
Outer Plexiform Layer
The Outer Plexiform Layer (OPL) (pronunciation: /ˈaʊtər plɛksɪfɔːrm ˈleɪər/) is a layer in the retina of the eye that plays a crucial role in visual processing.
Etymology
The term "Outer Plexiform Layer" is derived from the Latin words "plexus" meaning "braid" or "network", and "forma" meaning "shape" or "form". The term "layer" is derived from the Old English word "laeger", which means "a bed or stratum".
Function
The Outer Plexiform Layer is located between the inner nuclear layer and the outer nuclear layer in the retina. It is composed of the synapses between the dendrites of horizontal cells, bipolar cells, and the axons of photoreceptor cells. These synapses allow for the transmission of visual information from the photoreceptor cells to the bipolar cells, and then to the ganglion cells, which send the information to the brain via the optic nerve.
Related Terms
- Retina: The light-sensitive layer of tissue at the back of the inner eye.
- Inner Nuclear Layer: The layer of the retina that contains the cell bodies of the bipolar cells, horizontal cells, and amacrine cells.
- Outer Nuclear Layer: The layer of the retina that contains the cell bodies of the photoreceptor cells.
- Horizontal Cells: A type of neuron in the retina that integrates signals from multiple photoreceptor cells.
- Bipolar Cells: A type of neuron in the retina that transmits signals from the photoreceptor cells to the ganglion cells.
- Photoreceptor Cells: The cells in the retina that respond to light.
- Ganglion Cells: A type of neuron in the retina that receives visual information from photoreceptor cells via bipolar cells and transmits it to the brain.
- Optic Nerve: The nerve that carries visual information from the retina to the brain.
External links
- Medical encyclopedia article on Outer plexiform layer
- Wikipedia's article - Outer plexiform layer
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