Sensory systems are part of the nervous system. Sensory systems transduce stimuli received from the external world (or from within the body) into neural signals that lead to our perceptions of the world. A sensory system consists of sensory receptors, the neural pathways that conduct signals from the receptors to the brain, and the structures in the brain which are dedicated to processing the information.
With so much overlap from other areas of biological science as well as within physical science, sensory systems really are ideal subject matter for MCAT passages. There is also a significant body of knowledge involving the physiology of sensory systems within the field of psychology. There is a separate section on this site dealing with the particular issues regarding sensation and perception from the point of view of psychology.
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Conceptual Vocabulary Self-Test
Basic Terms Crossword Puzzle
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Conceptual Vocabulary for Sensory Systems