Receptors, the eye and sensory response

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By the end you’ll be able to

describe receptors as cells or organs that detect stimuli, including examples in the eye, ear, skin, nose and tongue
identify the main structures of the eye, including cornea, iris, pupil, lens, retina, optic nerve, sclera and ciliary muscles, and explain their functions
explain how the eye focuses on near and distant objects by accommodation, including changes in ciliary muscles, suspensory ligaments and lens shape

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describe the retina as containing light receptors and explain the role of the optic nerve in carrying impulses to the brain

describe the brain as a complex and poorly understood organ responsible for consciousness, intelligence, memory and learned behaviour, and evaluate the limits and uses of studying brain structure or function where specified

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