HB+Chemoreceptors+(taste)

Chemoreceptors: Taste

 * Sense of Taste: the microvilli in taste cells have receptor proteins that detect molecules that allow the brain to distinguish between different tastes.
 * in adults nearly 3,000 taste buds are located on the tongue
 * Most taste buds are located on the wall of the papillae (bumps on tongue)
 * There are four primary types of taste: sour, sweet, salty and bitter
 * Each type of taste is sensitive to different taste buds which are located in different places.
 * The taste bud opens at a taste pore
 * The taste bud has supporting cells and elongated taste cells that end in microvilli.
 * Molecules bind to receptor proteins, allowing nerve impulses to generate in sensory nerve fibers that go to the brain. When reaching the gustatory cortex, they are then interpreted as a unique taste.
 * Though our sense depend on sensory receptors, the cortex integrates the incoming information and gives us the sensation[[image:523px-Tongue_(Rolling_Stones).svg.png width="287" height="329"]]