Biology, asked by hanokcheedi, 1 year ago

digestive tract is called second brain.how?

Answers

Answered by Anonymous

Digestion begins in the mouth with the secretion of saliva and its digestiveenzymes.

Answered by xBrainlyKingXx

Answer:

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..... The enteric nervous system (ENS) is known as the "second brain" or the brain in the gut because it can operate independently of the brain and spinal cord, the central nervous system (CNS). It has also been called the "first brain" based on evidence suggesting that the ENS evolved before the CNS.

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