Question

8. According to the theory of pain, placing a sore foot in warm water blocks pain signals on the slow pain pathway by closing neural "gates" in the spinal cord and brain stem.

9. Each of the 10,000 taste buds on the tongue contains approximately a dozen

Answer 1

taste receptor cells that are responsible for detecting different taste modalities, such as sweet, salty, sour, bitter, and umami. Each taste receptor cell is sensitive to specific chemicals corresponding to these taste categories, activating nerve signals that are sent to the brain. Taste perception is a complex process that also involves the olfactory system, as smell significantly influences what we interpret as flavor.

If you would like to know more about how these processes work, or if you have other questions related to the topic, feel free to ask!