Which of the following cell types is not located on the retina?a) Bipolar cellsb) Amacrine cellsc) Magnocellular cellsd) Horizontal cellse) Ganglion cells

To answer the question about which cell type is not located on the retina, let's examine each option:

1. Bipolar cells - These are located in the retina. They transmit signals from photoreceptors (rods and cones) to ganglion cells.

2. Amacrine cells - These are also found in the retina. They are involved in various processing functions and help regulate signals between bipolar and ganglion cells.

3. Magnocellular cells - This term usually refers to a type of ganglion cell that is part of the visual pathway. While "magnocellular" can refer to certain cells in the lateral geniculate nucleus (LGN) of the thalamus, in the context of the retina, this term is a bit misleading. However, the actual magnocellular layers do not exist in the retina itself.

4. Horizontal cells - These cells are located in the retina and help in the lateral inhibition processes, linking the photoreceptors.

5. Ganglion cells - These are present in the retina and are responsible for transmitting visual information from the retina to the brain via the optic nerve.

Final Answer

c) Magnocellular cells are not located on the retina.