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crash course study guide AP Psych

crash_course_study_guide_AP_Psych.doc 3 Sensation I. PARTS OF THE EYE A. Cornea: protective covering where light first enters the eye B. Lens: bends (refracts) light rays; focuses a flipped, inverted image onto the retina C. Retina: a thin structure at back of eye that contains two types of receptor cells 1. Rods: cells in the periphery of the retina that respond to black and white.