![]() ![]() ![]() The signal is then transmitted across synapses through a series of neurons to the brain, either directly, as in the visual system, or through the spinal cord, as in the somatosensory system, which carries touch information from the skin. The stimulus triggers changes in the receptor cell, such as altering electrical potential across the membrane, transducing it into a neural signal. Additionally, some of them, such as the vestibular system, provide feedback about body position.Īll sensory systems have receptors, specialized cells that detect a stimulus, such as the photoreceptors in the eye that detect light. ![]() They underlie the major senses of vision, hearing, smell, taste and touch, as well as temperature and pain. Sensory systems are pathways in the nervous system that allows stimuli to be detected and perceived. ![]()
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