NSCI 1051 Lecture Notes - Lecture 10: Ciliary Muscle, Receptive Field, Optic Disc

• School: Temple University
• Department: Neuroscience - CLA
• Course: NSCI 1051
• Professor: Cynthia M Gooch

Document Summary

Kant (1724-1804) was a nativist who believed that certain forms of knowledge are inborn, such as categories for space, time, and causality. Study of the visual system of the brain supports kant"s thesis. Iris = controls the size of the pupil. Pupil = hole that lets the appropriate amount of light in. Lens = that which focuses the light on the retina. Ciliary muscle = pulls on the lens to focus at different distances. Retina = the true sensory organ of the visual system. Fovea = part of the retina with greatest acuity. Optic disk = where blood vessels and nerves leave the eye. Cataracts- clouding of les that interferes with vision. Occurs due to age, injury, uv radiation, congenital causes. Focuses far away: lens is thin and flat. Myopia: (nearsightedness) occurs because lens cannot accommodate enough to focus far objects correctly (always focuses in front of retina)