NROC64H3 Chapter Notes - Chapter 9: Retina Horizontal Cell, Outer Nuclear Layer, Inner Plexiform Layer
Document Summary
Overview: axons of retinal neurons are bundled into optic nerves, which distribute visual information (in the form of action potentials) to several brain structures that perform different functions. Some targets of the optic nerves are involved in regulating biological rhythms, which are synchronized with light-dark daily cycle; others are involved in the control of eye position and optics. The first synaptic relay in the pathway that serves visual perception occurs in a cell group of the dorsal thalamus called the lateral geniculate nucleus (lgn). From the lgn, visual information ascends to the cerebral cortex where it is interpreted and remembered. Reflected: the bouncing of light rays off a surface: the manner in which a ray of light is reflected depends on the angle at which it strikes the surface. A ray striking a mirror perpendicularly is reflected 180 degrees back upon itself, a ray striking the mirror at a 45 degree angle is reflect 90 degrees.
