Why do our Stomachs Rumble?
Answers
Answer:
Stomach growling occurs as food, liquid, and gas go through the stomach and small intestine. Stomach growling or rumbling is a normal part of digestion. There is nothing in the stomach to muffle these sounds so they can be noticeable. Among the causes are hunger, incomplete digestion, or indigestion.
Though stomach growling is commonly heard and associated with hunger and an absence of food in the stomach, it can occur at any time, on an empty or full stomach. Furthermore, growling doesn't only come from the stomach but, just as often, can be heard coming from the small intestines. Growling is more commonly associated with hunger because it is typically louder when the stomach and intestines are empty and so the organs' contents don't muffle the noise.
The physiological origin of this rumbling involves muscular activity in the stomach and small intestines. In general, the gastrointestinal tract is a hollow tube that runs from mouth to anus and its walls are primarily composed of layers of smooth muscle. When the walls are activated and squeeze the tract's contents to mix and propel food, gas and fluids through the stomach and small intestines, it generates a rumbling noise. This squeezing of the muscular walls is termed peristalsis and involves a ring of contraction moving aborally (away from the oral cavity) towards the anus a few inches at a time.
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