Meaning of Dunham. Celtic name. In Celtic, the name Dunham means - Dark skinned fighter.. Other origins for the name Dunham include - Celtic, Irish.The name Dunham is most often used as a boy name or male name. Celtic Name Meaning - Dark skinned fighter. Origin - Celtic.
eyeball. 1  Photoreceptors are the cells in the retina that respond to light. Their distinguishing feature is the presence of large amounts of tightly packed membrane that contains the photopigment rhodopsin or a related molecule.
Other cell types are present in the retina as well. The retina is perfused by blood vessels which form three layers (plexi). Two of the vascular plexi are deep inside the retina and one is near the inner surface of the retina (Figure 1). These vessels are made up of vascular endothelial cells and mural cells.