ANP 1106 Chapter Notes - Chapter 15: Olfactory Receptor Neuron, Olfactory Bulb, Epileptic Seizure

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jackie Carnegie

Document Summary

Dr. jackie carnegie & dr. w staines: physiology of smell and taste. Chemical senses gustation (taste) and olfaction (smell); their chemoreceptors respond to chemicals in aqueous solution; taste to substances dissolved in saliva; smell to substances dissolved in fluids of the nasal membranes. Complement each other and respond to different classes of chemicals. Odorant bind to olfactory receptor neuron and generate ap. Olfactory epithelium: organ of smell, pseudostratified epithelium in roof of nasal cavity covering superior nasal conchae on each side of nasal septum. Contains millions of olfactory sensory neurons (receptor cells) cushioned by supporting cells. Unique bipolar neurons each with a thin apical dendrite terminating in knob where many long olfactory cilia radiate increase receptive surface area, covered by coat of mucus to capture and dissolve airborne odorants, largely nonmotile. Smell is the only input pathway to the cerebral cortex that doesn"t pass through thalamus.