This document offers a comprehensive overview of sensory transduction mechanisms in photoreceptors and olfactory sensory neurons (OSNs). It elaborates on the specialized structures of these neurons th...This document offers a comprehensive overview of sensory transduction mechanisms in photoreceptors and olfactory sensory neurons (OSNs). It elaborates on the specialized structures of these neurons that enable them to detect light and odorant ligands, respectively. The text details the molecular architecture of rod and cone photoreceptors and OSNs, emphasizing their similarities and differences.