Sensory Flashcards
What happen to olfaction as you age?
declilnes
Why does olfaction decline as you age?
Loss of olfactory sensory neurons neurons and cells in the olfactory bulbs
What are the effect of a decrease in olfaction?
Causes diminished appetite, food selection, possible malnutrition, and safety issues
What happens to taste as you age
- Declines in the number of fungiform papilla -Higher concentration of flavors required
- Changes in taste receptor function
What are the 5 Gustatory stimulants?
- Sour
- Sweet
- Salty
- Bitter
- Savoriness
Hypogeusia
Decrease in taste sensation
Ageusia
Absence of taste
Parageusia
Perversion of taste in which substances possess an unpleasant flavor
Where are the nerves for taste located?
- tongue, soft palate, uvula, pharynx, and upper esophagus
- GI tract and airway smooth muscle (but the main function is not for taste)
What are the olfactory stimulants
Camphoraceous, Musky, Floral, Peppermint, Ethereal, Pungent, Putrid
Hyposmia
Impaired sense of smell
Anosmia
Complete loss of smell
Olfactory hallucinations
Arise from hyperactivity in cortical neurons and involve smelling odors that are not really present
Parosmia
Abnormal or perverted sense of smell
What can alter sense of smell?
upper respiratory tract infections, frontal head injuries, smoking, medications, aging