Gustatory and olfactory disorder types Flashcards
Anosomia
Loss of smell
Ageusia
Loss of taste
Hyposmia
Reduced perseption of smell
Hypogeusia
Reduced perception of taste
Hyperosmia
Increased perception of taste
Dysosmia
Distortion/perversion of smell
Dysgeusia
Distortion/perversion of taste
Cacosmia
Revolting sense of smell
Cacogeusia
Revolting sense of taste
Agnosia
Knowing stimulus is there, but being unable to characterize it
Locations of disorders
Peripheral, neuroepithelia, central
Causes of peripheral disorders
Chemicals can’t reach receptors or are altered in some way. Olfactory: too many neurons, inflammation, foreign body etc. Gustatory: dry mouth, secretion too thick, thrush etc.
Causes of neuroepithelial disorders
Damage/absences of receptor cells, processees, or any part of transduction. Olfactory: head trauma, drugs/toxins etc. Gustatory: burning tongue etc.
Causes of central disorders
Damage or malfunction to any of the central pathways. Hallucinations and loss of discrimination usually have central pathways.
What do patients with ageusia often complain about as well?
Agnosmia