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.
Additional structures, not directly associated with vision, are found as outgrowths of the retina in some vertebrate groups. In birds, the pecten is a vascular structure of complex shape that projects from the retina into the vitreous humour; it supplies oxygen and nutrients to the eye, and may also aid in vision.
The retinas of our eyes have a large number of light-sensitive cells. These cells are of two types. One type of cell is cone shaped, while the other type is rod shaped. They are called cones and rods respectively. The rods respond to intensity or brightness of light, while the cones respond to colours. The cones make it possible to distinguish between different colours.