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Question

As you eat more food, stomach expands to accomodate it. What structure makes this possible?

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Solution

The stomach is a muscular bag.

Being made of muscles, it is easily stretchable.

So although normally, a feeling of "fullness" would set in on consuming about one liter of food ( Well, for most people ;)), the stomach can hold a lot more than that because of it's elasticity.

Normally- About 1.5- 2 liters

Maximum capacity- 3-4 liters.

Stomach volumes differ from person to person, some people can just eat a lot because their systems have made the necessary minor changes to adapt to the habit.

When the stomach is empty- it's volume is only 0.08 L ( nearly 40 times less)
which points at it's enormous elasticity.
  • Also, the stomach is J-shaped.
Thank you :)

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