Want this question answered?
Digestion
Both, saliva breaks down food chemically, and your teeth mechanically break down food by cutting, grinding, and mashing.
Shake Your Body - Down to the Ground - was created on 1978-12-08.
The superiormost parts of the body are farthest from the ground.
food - body as gasoline - car food - body as wind - sailboat food - body as electricity - light bulb food - body as knowledge - brain
The Mouth
Ground tissues?
The mouth is the first site of digestion in the human body. In the mouth food is broken down mechanically by the jaw and chemically by saliva.
When your body breaks down food into nutrients, chemical digestion is taking place. In contrast, physical digestion breaks down food mechanically into smaller particles.
it digests the food
For mammals (like people) food is broken apart mechanically by chewing. It the mixes with several different body fluids (starting with saliva) that will start digestion- changing the food you ate into a form that can be absorbed by your body in the intestines. Undigested food is excreted from the body as feces (poop).
Does the liver mechanically break down food or does it chemically do it? It's not a muscle so it doesn't break down food mechanically, but it does secrete chemicals that help to break food down, like bile, which is stored in the gall bladder and released to help break down fats and make them more soluble so that they can be absorbed by the body.
The mouth, specifically the teeth, breaks down food mechanically through the process of chewing. The stomach also contributes to mechanical breakdown through muscle contractions that help mix and churn food.
The mouth is where food is chewed.
In the stomach
Beak
teeth