Biochemistry 2280A Study Guide - Quiz Guide: Olfactory Bulb, Olfactory Receptor, Signal Transduction
4 Jun 2020
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Olfactory receptor cells line the upper portion of the nasal cavity. Olfactory pathways - the olfactory epithelium lies high within the nasal cavity, and its olfactory neurons project to the olfactory bulb (olfactory neurons synapse with secondary sensory neurons in the olfactory bulb. ). Sensory input at the receptors is carried through the olfactory cortex to the cerebral cortex and the limbic system. Olfactory neurons in the olfactory epithelium live only about two months. They are replaced by new neurons whose axons must find their way to the olfactory bulb. A range of animal species from simple to complex can sense and respond to light. Key molecule in photo transduction all animals who can sense light use the same pigments: rhodopsins (retinal + opsin) The microvillar membrane contains rhodopsin and the other molecular constituents of the signal transduction cascade: photoreceptors in single-lens eyes:
