What process of digestion occurs in the stomach?
In the stomach, food undergoes chemical and mechanical digestion. Here, peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion).
What happens during digestion in the duodenum?
After foods mix with stomach acid, they move into the duodenum, where they mix with bile from the gallbladder and digestive juices from the pancreas. The absorption of vitamins, minerals, and other nutrients begins in the duodenum.
What are the steps in the process of digestion that occur in the stomach and small intestine?
The digestive system ingests and digests food, absorbs released nutrients, and excretes food components that are indigestible. The six activities involved in this process are ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation.
What are the 5 digestive processes?
The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.
What are the 6 processes of digestion?
Digestion Is a 6-Step Process The six major activities of the digestive system are ingestion, propulsion, mechanical breakdown, chemical digestion, absorption, and elimination.
What drains into the duodenum?
The venous drainage follows the arteries and ultimately drains into the portal system. The duodenum also has lymphatic vessels which drain into the pancreaticoduodenal lymph nodes located along the pancreaticoduodenal vessels and the superior mesenteric lymph nodes.
What is the function of stomach and intestine in food digestion?
Stomach: Your stomach creates digestive juices and breaks down food. It holds food until it is ready to empty into your small intestine. Small intestine: Food mixes with the digestive juices from your intestine, liver and pancreas.
What are the 3 stages of digestion?
Gastric activity involved in digestion is divided into three stages known as the cephalic phase, the gastric phase, and the intestinal phase. These phases overlap and all three can occur simultaneously.