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.
Part of the eye between the lens and the retina, containing a clear jelly called the vitreous humor. Light-sensitive cells found in the retina. Photoreceptors in the human retina are classified as cones and rods. Cones are located in the central retina (the fovea) and control color vision.