Quick Answer: What Is The First Step Of Digestion?

What happens in digestion step by step?

There are four steps in the digestion process: ingestion, the mechanical and chemical breakdown of food, nutrient absorption, and elimination of indigestible food.

The mechanical breakdown of food occurs via muscular contractions called peristalsis and segmentation..

What is the last stage of digestion?

The final stage of the digestive system is the colon (large intestine) which absorbs water and salts before the remains are passed out of the rectum as faeces. The colon can also help to absorb remaining carbohydrate and some fats.

What are the main digestive organs?

The alimentary tract of the digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large intestines, rectum and anus. Associated with the alimentary tract are the following accessory organs: salivary glands, liver, gallbladder, and pancreas.

What is the order of the digestive system?

The main organs that make up the digestive system (in order of their function) are the mouth, esophagus, stomach, small intestine, large intestine, rectum and anus. Helping them along the way are the pancreas, gall bladder and liver.

What is the first step of digestion called?

Mouth. The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use.

What are the 6 steps of digestion?

The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation.

What are the 7 steps of digestion?

The digestive processes are ingestion, propulsion, mechanical digestion, chemical digestion, absorption, and defecation.

What is the process of digestion step by step?

Your digestive system, from beginning … to endStep 1: Mouth. To more easily absorb different foods, your saliva helps break down what you’re eating and turn it into chemicals called enzymes.Step 2: Esophagus. … Step 3: Stomach. … Step 4: Small Intestine. … Step 5: Large Intestine, Colon, Rectum and Anus.