1. The Senses – The Tongue

2. Pepsi Blind Taste Test

3. The Tongue - Taste
The tongue is the organ that has receptors to capture flavour molecules
The tongue is a muscle that is covered with a layer of epithelial cells (moist) that form rough bumps called papillae

5. http://mentalfloss.com/ article/62294/tongue- rolling-and-5-other- oversimplified-genetic- traits

6. Types of Taste Buds

7. Flavour Detection
The tongue can only detect flavourful molecules of the following 5 basic flavours:
Bitter
Sour
Salty
Sweet
Umami

9. A frequent myth…
WRONG

10. Tasting For a substance to be tasted, 4 conditions must be met:
It must have a taste
It must be able to dissolve in saliva
It must be in a sufficient concentration to stimulate receptor cells
It must come into contact with the taste receptor cells

11. Non Tasting Function
The tongue is used to move food around for chewing
It is composed of muscle fibers that are oriented in different directions making it very versatile (flexible)

12. Taste and Smell https://www.youtube.com/watch?v=-QUphgFZE3s
They are related

13. Spicy Foods