β why
Why do our fingernails grow continuously?
Human bodyIntegumentary system
Quick Answer
Nails keep growing because cells in the nail matrix keep dividing throughout life. They protect the fingertips and help with gripping and fine touch.
The Full Story
Fingernails originate from the nail matrix, a specialized growth area under the base of the nail. New cells are produced there, harden with keratin, and push the older nail forward. Because the process never really stops, nails keep lengthening unless they are trimmed or worn down. Fingernails typically grow a little faster than toenails, and growth is faster in younger people.
Key Facts
1.Nails are made of keratin
2.Growth comes from the nail matrix
3.Fingernails usually grow faster than toenails
YouTube Angle
Suggested video title for this topic:
"Your nails are tiny biological conveyor belts that never stop moving."