Psych ch3-chemicalsensesslides
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Transcript of Psych ch3-chemicalsensesslides
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Chemicals Senses: It Tastes Good and Smells Even Better
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Gustation
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Taste (Gustation)•7.6 How do the senses of taste and smell work, and how are they alike?
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How does the sense of taste work?• Tastants, chemicals in foods, are detected by taste buds, located in papilae.
• Each person has 5-10,000 taste buds which have sensory cells (50-100 per taste bud) for different chemical tastants (sugars, salts, acids).
• When the sensory cells are stimulated it sends a message down the nerve fibers to the thalamus.
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The Five Basic Tastes
SOUR
BITTERSWEET
UMAMI
SALTY
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Smell (Olfaction)
1. Molecules hit the epithelium 2. Activate the cilia3. Goes to olfactory bulb which sends message to brain