The human retina is composed of 10 layers. Beginning from back to the front of the retina, the layers include; an epithelium of retinal pigments, a layer of cones and rods, an outer regulating membrane, an outer nuclear layer, an outer plexform layer, an inner nuclear layer, an inner plexform layer, a layer of ganglion cells, a. layer of nerve fibre and an inner regulating membrane.
1. The mitochondria provides energy for the cell, (sometimes called the powerhouse of the cell).
2. The nucleus stores DNA and directs the cell.
3. Ribosomes make proteins.
4. The Golgi Apparatus sorts the proteins and ships them to other parts of the cell.
The most forward two teeth in the upper or lower mouth are incisors
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