BIOL 339 Chapter Notes - Chapter 7: Membrane Potential, Chemoreceptor, Cytoskeleton
16 Oct 2016
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Sensory receptors cell that is specialized to detect incoming sensory stimuli. Refer to page 258 (figure 7. 2 third edition for overview image of sensory receptors. Take incoming stimuli of various types and transduces (convert) them into changes in membrane potential: specialized protein in membranes allow conformation changes to different stimuli. Change in conformation of proteins activates signal transduction pathways. Changes membrane potential acts as signal in nervous system. Steps involved in sensory reception: reception of signal, transduction of signal, transmission of signal to integrating center, perception of stimulus at integrating center. Sensory organ complex structure consisting of multiple tissues that work together to allow an organism to detect an incoming stimulus. Afferent neurons: pathways that carry sensory information from the body to the cns (brain +spinal cord: also, known as a sensory neuron. Epithelial cells can also be sensory neurons.
