Visual Pathway in Retina Neurotransmitters Signal Transmission in Retina Photoreceptors Horizontal cells Bipolar Cells Amacrine Cells Ganglion cells W cells X Cells Y cells P and M cells Ganglion cells…
Learning Outcomes By the end of lecture students should be able to: Special Senses Vision Introduction 300,000:200,000 1:0.50 Refraction Components of the Eye’s Optical System Lenses •Convex lens •Concave lens…
Learning Outcomes By the end of lecture students should be able to: Optics of eye Refractive Index Definition Accommodation is the mechanism by which the eye changesrefractive power by altering…
RHODOPSIN VISUAL CYCLE EXCITATION OF RODS IN DARK IN LIGHT SUMMARY DURATION OF THE RECEPTOR POTENTIAL PHOTOTRANSDUCTION PHOTOTRANSDUCTION PRINCIPAL STEPS IN PHOTOTRANSDUCTION
RETINA Light sensitive portion of the eye Contains cones for color vision Contains rods for night vision Contains neural architecture Light must pass through the neural elements tostrike The…
Muscular Movements Of Eye Fixation Movements Voluntary fixation movements Involuntary fixation movements Saccidic Movements Pursuit Movement Superior Colliculi Analysis Of Visual Information Analysis of visual color and detail Analysis of…
Introduction Optic Nerve Optic Chiasma Optic Tract Also terminates Lateral Geniculate Body Visual Cortex Optic Pathway Visual Defects Optic Pathway Defects A. Lesion of left optic nerve: Total blindness of…
Physics of Light Light:Electromagnetic energy whose wavelength isbetween 400 nm and 700 nm COLOR Visual description of an observer by which he distinguishes two fields of same size,shape…
Introduction •Cells of the body require specific conditions tosurvive and function•Maintenance of body conditions in a stablesteady state is called homeostasis Chemical Messengers Chemical messenger systems regulates multiple activities oftissues:…
Learning Objectives Key Terms Physiological Anatomy Physiological Anatomy Physiological Anatomy Physiologically, the pituitary gland is divided into two portions Anterior Pituitary Hormones Hypothalamic Controls Posterior Pituitary Gland Posterior pituitary gland…