BLG 601 Lecture Notes - Lecture 5: Adenylyl Cyclase, Olfactory Epithelium, Olfactory Tract
7 Sep 2018
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Document Summary
Dendrites of olfactory neurons have enlarged ends (olfactory vesicles: olfactory epithelium perceives odors. Ions entering olfactory hair cause depolarization of the neuron. This is what is involved: olfactory epithelium cibiform plate olfactory tract location of neurons. Association neurons also receive input from brain, so information can be modified before it reaches the brain. Information goes to olfactory cortex of the frontal lobe w/out going through thalamus: o(cid:374)ly (cid:373)ajor se(cid:374)se that does(cid:374)"t. 3 regions in frontal lobe affect conscious perception of smell and interact with limbic system. Lateral olfactory area conscious perception of smell: medial olfactory area visceral and emotional reactions to odors. Intermediate olfactory area effect modification of incoming information. No taste buds: vallate largest, least numerous. 8-12 in v along border between anterior and posterior parts of the tongue. Scattered irregularly over the superior surface of tongue. Look like small red dot interspersed among filiform. Taste bud: supporting cells surrounding taste (gustatory) cells.
