Most Expendable Organ

According to, "We’re all familiar with the flashy, big-ticket organs: the heart, the brain, the lungs. Their celebrity often obscures the work... [but] which piece of the body [is] the least essential chunk is..." Anatomists and evolutionary biologists say the gallbladder is an expendable organ. It acts as extra storage space in the body, and several people have gotten it removed and functioned fine.

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