Anatomy and Cell Biology 3319 Lecture Notes - Lecture 23: Piriform Cortex, Orbitofrontal Cortex, Central Nervous System
10 Nov 2016
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Nov 10 special senses: olfaction & gustation. Olfaction: sensation that is produced when odorant molecules react chemically with olfaction (smell) receptors. Only one cranial nerve olfactory nerve (cn1: divided to olfaction bulb (base of cerebrum) and tract. A(cid:271)o(cid:448)e that there"s olfa(cid:272)tory epitheliu(cid:373) (cid:449)hi(cid:272)h is i(cid:374) proximity to olfactory bulb. Gas molecules can come in and get attached to the olfactory epithelium. Olfactory epithelium: olfactory cilia inferior part of olfactory neuron receive odorant molecules. Transfer through olfactory neurons and transfer to cribiform plate: supporting cells help with hemostasis, metabolism, myelination of neurons, basal cells part of epithelium. Bo(cid:449)(cid:373)a(cid:374)"s gla(cid:374)d (cid:894)(cid:373)u(cid:272)us gla(cid:374)d(cid:895) secrete mucus help odorant molecules to still and attach to olfactory epithelium. Consists of foreman that allow olfactory receptor neurons to go through it so can get to olfactory bulb in brain glomeruli (joint points b/w olfactory nerves and mitral cells) brain. Within olfactory bulb as olfactory receptor neurons enter, it connects to structure called.
