Question

we do not sense any pain when we cut hairs or nails but we fell pain when someone pulls are hair. why?

Answer 1

Answer:

Whenever a body tissue containing nerve endings is injured the nerve is stimulated and it sends pain signal to our brain. The part of nails and hair that we cut, does not contain nerve endings. So when we cut/injure nails/hair we can't feel pain because that part can't send pain signals.

Explanation:

Answer 2

Answer:

Whenever a body tissue containing nerve endings is injured the nerve is stimulated andit sends pain signal to our brain. The part ofnails and hair that we cut, does not contain nerve endings. So when we cut/injurenails/hair we can't feel pain because that part can't send pain signals.