Placeholder Image

字幕列表 影片播放

  • Smart Learning for All

  • How do nails grow?

  • A nail consists of many different parts.

  • The visible part of the nail is called nail plate.

  • Nail plate lies on the nail bed.

  • Can I sleep on that bed?

  • Just listen.

  • Matrix is the area where nail growth originates.

  • It lies below the skin.

  • Matrix has specialized cells which keep dividing and creating nail cells.

  • The nail cells grow and produce a hard protein called keratin.

  • Then, these keratin filled cells are pushed forward as more new cells are formed behind them.

  • Eventually, the keratin filled cells die and flatten to form the nail plate.

  • The hard keratin in these dead cells gives strength to the nail and makes it hard.

  • But what is the use of these nails?

  • Nails protect our finger tips.

  • Moreover, by observing the condition of our nails, doctors can get clues about our overall health.

  • For more educational videos, please download 'Smart Learning for All' Android App from Google Play Store.

  • Also, don't forget to subscribe to our YouTube channel.

Smart Learning for All


單字即點即查 點擊單字可以查詢單字解釋

B1 中級 美國腔

指甲如何生長?| 我的指甲是怎麼長出來的? (How do nails grow? | #aumsum)

  • 8 1
    AumSum 發佈於 2021 年 01 月 14 日