Biology of smell
5 important questions on Biology of smell
What are the functions of smell
- perfumes and hygiene
- "pheromones"?
- Emotions, mood and memory
Safety
- fire
- gas leak
- spoiled foods
- toxins
Symptom neurological disease
Food
- anticipation phase of eating: appetite
- during consumption: flavour
What is the dual role of olfaction?
First there is Orthonasal smell
- Which is that you perceive from the environment (Food anticipation)
Second there is Retronasal smell
- which is takes place when you chew on the food (Flavour perception)
What are the 2 olfactory dysfunctions? And what can cause it?
Anosmia (geheel geurverlies)
- Age
- Respiratory tract infection
- Head trauma
- Toxins, drugs, medication
- Chronic disease
It has a large impact on quality of life!
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Beyond the olfactory bulb two unique features happen, which one?
- ipsilateral
- no thalamus
Which methods can be used for measuring odor perception in humans.
- Sniffin'Sticks
- pens filled with odors
- identification ability
- discrimination ability
- detection threshold
- UPSIT
- scratch and sniff boeklets
- odor identification ability
- Olfactometer
- can deliver odorants in a very controlled and precise way
- illiberal tests for olfactory function
(products
- aroma wheels)
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