Olfactory system “rhinencephalon”

• Olfactory system “rhinencephalon”

• Taste (gustation)

• Somatosensory component

Signal reception

• Signal reception

• The olfactory epithelium, olfactory receptor neurons
• Signal transduction

• Pathway:

• Olfactory bulbs
• tracts

• Cortical areas

• Disorders of olfaction

Anosmia vs olfactory agnosia

• Anosmia vs olfactory agnosia

• Causes of anosmia

• What’s specific anosmia?

• What are the causes of hyperosmia?

• Parosmia (dysosmia)
• Cacosmia (uncinate)
• Phantosmia (olfactory hallucinations)

Receptor apparatus:

• Receptor apparatus:

• Taste buds and Papillae
• Receptors and transduction

• Peripheral pathway

• Central pathway and cortical areas

• Clinical notes

Extra-lingual

• Extra-lingual

Ageusia

• Ageusia

• Hypogeusia

• Parageusia (dysgeusia)

• Cacogeusia

• Gustatory hallucinations