BMSC11001 Lecture Notes - Lecture 12: Sodium Channel, Olfactory Tract, Lateral Rectus Muscle
Document Summary
Receptors for special senses are located in complex sensory organs of the head. Smell and taste both are chemical senses require an interaction with a speci c receptor sensations arise from interaction of molecules with speci c receptor. Odour from foods can pass from mouth to nasal cavity - when have a blocked nose can"t taste as well. Superior are of nasal cavity covers cribriform plate of ethmoid bone and superior nasal concha. 3 types of cells olfactory receptor cells with olfactory hairs (non-motile cilia) extending from dendrites olfactory hairs respond to inhaled chemicals (odourants) cells down the bottom are the ones that interact with the smells and identify the smell. Supporting cells help anchor the olfactory receptor cells and support them (provide nourishment and care for them. Detoxify the chemicals electrically insulate receptors from one another provide support and nourishment.
