title: The different types of neuronal cells in the retina of the owl as revealed by phase contrast microscopy.
abstract: Observations on the retina of the owl by employing phase contrast microscopy revealed the presence of double cones, single cones and rods. Horizontal cells, bipolar cells (two types), muller cells, amacrine cells (two types) and ganglion cells were distinguished.
mesh_terms: D000818:Animals; D001717:Birds / Q000033:anatomy & histology*; D003624:Darkness; D009474:Neurons / Q000166:cytology; D010786:Photoreceptor Cells / Q000166:cytology; D012160:Retina / Q000166:cytology*