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.
Numbness in the hand and ring and pinkie fingers is known as cubital tunnel syndrome. It occurs because the ulnar nerve is subject to a variety of problems, including friction, ulnar nerve dislocation, and impingement of the ulnar nerve, and all of these problems can cause numbness in these fingers.he most common cause cause for numbness and tingling in the hand is carpal tunnel syndrome which is compression of the median nerve in the carpal tunnel of the wrist. This can be painful at the wrist and will typically will cause numbness in the thumb, index and middle finger.