Plural of cecum; the small tube-shaped pockets that branch off from the beginning of the large intestine in many animals, including humans.
Latin plural of 'cecum', from caecus meaning 'blind' because these pouches are closed at one end like a blind alley with no exit.
Your ceca are actually really important—they house bacteria that help you digest tough plant material and produce vitamins, which is why rabbits and cows have enormous ceca compared to humans.
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