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Oral cavity and stomach
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∙ 14y ago
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Name two regions of the digestive tract where mechanical food breakdown processes are very important?
The mouth (by chewing) and the stomach (by gastric motion).
What Two regions of the digestive tract where mechanical food breakdown occur?
oral cavity and stomach
Two anatomic regions involved in the mechanical breakdown of food?
The process begins when you chew, that is the first physical breakdown which happens alongwith chemical breakdown with the help of the saliva. the other happens in your stomach, where the food is broken down to form a semi liquid type of substance.
What is most responsible for the mechanical breakdown?
They are the teeth. Stomach also involve in mechanical digestion
How does the esophagus perform mechanical digestion?
Peristalsis. The movement of muscles bringing the food to the stomach.
The third layer of smooth muscle found in the stomach wall allows mixing and mechanical breakdown by?
Chruning
What are the regions that break down foodstuffs mechanically?
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.
What is the third layer of smooth muscle found in the stomach wall that allows mixing and mechanical breakdown?
Smooth muscle
In addition to storage and mechanical breakdown of food what else happens in the stomach?
initiates protein digestion and denatures proteins
What digestion is occurring in the stomach?
The stomach has a very acidic environment. This favors the breakdown of proteins. An enzyme (i.e. a biological catalyst) called trypsin is active at acidic conditions (gastric juice) and is responsible for the break down of proteins in the stomach.
How does mechanical breakdown affect chemical breakdown?
Mechanical breakdown makes food smaller so it wasn't be so large for the chemical breakdown.
Does the stomach use mechanical or chemical breakdown?
It uses both mechanical and chemical breakdown. The muscles of the stomach and the stoma (well a special opening that allows food to enter and to leave) push food into the intestines. Acid within the stomach and other no so famous chemicals break down the food to be small enough to be processed in the intestines and colons. Another device helps the stomach and uses chemical breakdown too: The gall bladder emits bile and the liver filters broken down matter and dangerous matter (such as alcohol, diseases, foreign matter (smoke, marijuana, poison, etc).
