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silvermyth
· 7 years ago
· FIRST
If you replace all the parts in a ship is it the same ship
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harmonywho
· 7 years ago
Technically not true. I don’t think heart muscle cells regenerate unless the heart is damaged
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la
· 7 years ago
Also, brain cells
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guest
· 7 years ago
Heart, nerve, brain, ovum, the cones in your eyes, various ones last a lifetime; certain ones like fat cells last 10-12 years on average, some have just a few days in their lifespan (sperm, colon, etc.), but if you're talking simple external dermal layers (skin), white and red blood cells, and so on, the 7 year will completely cycle through them.
4
guest
· 7 years ago
But memories; they can fade and change but seldom are they replaced entirely.
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