Humans detect taste with taste receptor cells. These are clustered in taste buds and scattered in other areas of the body. Each taste bud has a pore that opens out to the surface of the tongue enabling molecules and ions taken into the mouth to reach the receptor cells inside.1  salty.2  sour. 3  sweet. 4  bitter.5  umami.umans detect taste with taste receptor cells. These are clustered in taste buds and scattered in other areas of the body. Each taste bud has a pore that opens out to the surface of the tongue enabling molecules and ions taken into the mouth to reach the receptor cells inside. 1  salty. 2  sour. 3  sweet. 4  bitter. 5  umami.
Raynaud's Syndrome May be the Cause of Your Fiery Fingertips. Another major cause of burning fingertips is Reynaud's Syndrome. This condition is brought about when the blood vessels that supply the hands and/or feet narrow. In individuals with Reynaud's, episodes of burning fingertips are exacerbated by exposure to cold.
Tingling fingers is an abnormal condition in which you feel a prickling sensation in your fingers. Tingling is also a type of paresthesia. A paresthesia is a burning or prickling sensation often described as pins-and-needles. Paresthesias may or may not be accompanied by pain. Tingling fingers usually arises from a lack of blood supply to an area or damage to a nerve or nerves that supply the hand and fingers, such as carpal tunnel syndrome or a cervical disk problem. Tingling fingers can also result from infection, inflammation, trauma, and other abnormal processes.