How does physical digestion take place in these parts of the human digestive system? Mouth or Stomach? Explain this please and best answer gets brainliest​

1-Mouth:the mechanical digestion takes place in mouth with the help of teeth. chewing is the machanical digestion of food in mouth.

2-Stomach: by the churning process. churning is the mixing of food in stomach by the movements of smooth muscles in stomach wall.

Explanation:

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

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