What type of sensory cells cover the tongue? what are bundles of these cells called

ANSWER:

The taste receptor cells are the sensory cells that are present on the tongue. These cells are bundled in taste buds.

EXPLANATION:

The receptor cells taste an item and the sensation of taste is then passed to the brain. Taste buds have papillae that sense the taste.

The various taste sensations that the taste buds can feel include sweet, sour, bitter, and salty. On the taste bud, not all receptor cells sense the same taste i.e. some cells may bear sweet taste while others may bear another taste.  

these are common warning signs of overtraining syndrome:

washed-out feeling, tired, drained, lack of energy

mild leg soreness, general aches, and pains

pain in muscles and joints

sudden drop in performance

insomnia

headaches

decreased immunity (increased number of colds, and sore throats)

decrease in training capacity/intensity

moodiness and irritability

depression

loss of enthusiasm for the sport

decreased appetite

increased incidence of injuries.

a compulsive need to exercise