Somatosensory system

Ch 50. Sensory and Motor Mechanisms 50.1 ? sensory receptors transduce stimuli energy and transmit signals to the central nervous system by changing membrane potential. Reflex= simplest response circuit Star nosed mole that tactile ( touch) sensors on nose. Sensory Pathways have 4 functions: Sensory reception, transduction, transmission, perception Sensory reception- detection of a stimulus by sensory cells. Specialized nerurons or epithelial cells Exitst signally or in organs like eyes and ears Sensory receptor- descres a sensory cell or organ and he subcellular structure that interacts directly with simuli Detect stimuli OUTside of body like heat, light, and pressure, and chemicals. Inside body include body position, blood pressure, etc