PSYC 2307 Lecture Notes - Lecture 7: Olfactory Receptor Neuron, Olfactory Epithelium, Cribriform Plate

• School: Carleton University
• Department: Psychology
• Course: PSYC 2307
• Professor: Brian Tansley

Document Summary

Also receives direct projections from olfactory regions: limbic system: the encompassing group of neural structures that includes the olfactory cortex, the amygdala, the hippocampus, the piriform cortex, and the entorhinal cortex. Information sent to brain via cranial nerves: anatom and physiology of the gustatory system, four kinds of papillae on the tongue, 1. Filiform papillae: no known taste function: 2. Fungiform papillae: mushroom-shaped structures distributed most densely on the edges of the tongue. An average of six taste buds per papilla buried in the surface: 3. Foliate papillae: folds of tissue containing taste buds. On rear of the tongue lateral to circumvallate papillae, where the tongue attaches to the mouth: 4. Circumvallate papillae: circular structures that form an inverted v on the rear of the tongue. These molecules taste sweet or bitter: taste processing in the central nervous system, pathway: taste buds to cranial nerves to medulla and thalamus and then on to cortex.