อายุเฉลี่ยของ cells ในร่างกาย

If we look at the adult human body at age 40 from head to toe, the list goes something like this:

• Brain cells of the cerebral cortex (the grey matter) are with you from birth.
• Brain cells of the visual cortex (the array of cells in the front of the brain used for vision) are with you from birth.
• Brain cells of the cerebellum (the structures at the base of the brain) are slightly younger than you are.
• Intercostal muscle cells are about 15.1 years old.
• Gut lining cells are about 5 days old.
• Gut cells other than the lining are about 15.9 years old.
• Skin cells are about 14 days old.
• Red blood cells are about 120 days old.
• Bone cells are about 10 years old.

ที่มา: How old is my body if the cells keep renewing themselves?