massage activates the large nerve fibers that block the pain signals of the small nerve fibers
When an odor receptor is stimulated, the membrane sends neural messages up the olfactory nerve to the brain
4.4 Tasting, Smelling, and Touching
sweet, salty, sour, bitter, piquancy (spicy), and umami (savory).
meaty taste associated with meats, cheeses, soy, seaweed, and mushrooms, and particularly found in monosodium glutamate (MSG)
a popular flavor enhancer
designed to sense chemicals in the mouth.
Human tongues are covered with 2,000 to 10,000 taste buds, and each bud contains between 50 and 100 taste receptor cells.
olfactory receptor cells
topped with tentacle-like protrusions that contain receptor proteins.
We have approximately 1,000 types of odor receptor cells
and it is estimated that we can detect 10,000 different odors
Touch communicates warmth, caring, and support, and is an essential part of the enjoyment we gain from our social interactions with close others
largest organ in the body, is the sensory organ for touch
Pressure, hot, cold, and pain