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Taste: Smell: Touch

Taste: Smell: Touch. Chemoreception. Chemo reception Taste (tongue) – Smell (olfactory cells in nose) Taste buds contain many taste receptors that sense dissolved chemicals. Taste. Why is bitter near the back? Or sweet near the front?

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Taste: Smell: Touch

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  1. Taste: Smell: Touch

  2. Chemoreception • Chemo reception • Taste (tongue) – Smell (olfactory cells in nose) • Taste buds contain many taste receptors that sense dissolved chemicals.

  3. Taste • Why is bitter near the back? Or sweet near the front? • - Poison is usually bitter which stimulates the gag reflex; preventing the substance from being swallowed.

  4. Smell • Olfactory cells sense airborne chemicals. • Located in the nasal passages. • Work with taste buds. • Sends input to olfactory bulb in brain and then to the emotional centres of the brain and the frontal lobe

  5. Sensory Receptors in the Skin • Sensory receptors are modified ends of sensory neurons. • Skin has several types of receptors to help you feel: light touch, pressure, pain, change in temperature.

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