Digestion And Absorption

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Histology of Alimentary Canal

The wall of the alimentary canal has four basic tissue layers: the mucosa, submucosa, muscularis, and serosa.

Watch this video which will help you understand the role of these layers.

Layers of the Small Intestine

3 mins

Journey of Food!!!!!

Human alimentary canal is around 9 meter long!!!! This means that the food that you eat have to pass through this long canal before it gets utilised by the body cells. This journey may take from 30 to 40 hours. Let us have a look at this 40 hour long journey of the food in 4 minutes. Click the given video and embark the journey of food!

How your digestive system works - Emma Bryce

5 mins

Oral Cavity

The mouth, also called oral cavity or buccal cavity is the first part of the human digestive system.It consists of teeth, tongue and salivary glands. Here is a interesting video for you which will help you understand and learn all about human oral cavity in an effective way.

Digestion in the Mouth

5 mins

Small Intestine

The small intestine is a long tube-lie organ, which loosely coils in the abdomen area. Here, enzymes from the pancreas and liver helps in complete digestion of the ingested food. Duodenum, jejunum, and ileum are the three segments that make up the small intestine. Watch this video selected just for you and know everything about the small intestine.

Learn about the small intestine | Bile juice | Pancreatic juice | Intestinal juice

5 mins

Carbohydrate Digestion

The goal of carbohydrate digestion is to break down all polysaccharides, disaccharides and complex carbohydrates into monosaccharides for absorption, although not all are completely absorbed in the small intestine (e.g. dietary fibres).

You have a fair idea that carbohydrates are energy-giving foods. But how does these carbohydrates become available to the body in a form which can be used for energy production. The given video will help you connect all the dots from the structure of carbohydrates to importance of digestive enzymes in breaking it down and fate of carbohydrates in our body.

Carbohydrate Digestion And Absorption - Carbohydrate Metabolism

4 mins

Lipid Digestion

In foods, lipids are mainly found in the form of triglycerols (triglycerides) (TAG), which make up to 99% of lipids of plant and animal origin. The lipid digestion in our body is very efficient. To you surprise, approximately 95-98% of the lipids in the diet are absorbed in the small intestine.

In order to do so, the body breaks down fats into smaller fat molecules and then the body absorbs them in the small intestine. Watch this video for a decent understanding of the process.

Fat Lipid Digestion And Absorption - How Are Fats Lipids Digested And Absorbed

3 mins

Protein Digestion

Proteins are the building blocks of body tissues and also serve as a fuel source. They are essential nutrients for the human body. In this interesting short video, we will look at the different enzymes that take part in breaking the bonds between the amino acids that make up proteins.

Protein Digestion And Absorption - Protein Metabolism

4 mins

The Hunger Hormones

How does your body know when you are hungry and when you are full? Well, there are hormones known as"hunger hormones", leptin and ghrelin. Leptin is a hormone, made by fat cells, that decreases your appetite. Ghrelin is a hormone that increases the appetite, and also plays a role in increase in body weight. Watch the given video to understand the role of these hormones in our body.

Leptin and Ghrelin hormones mechanism of action

3 mins

Absorption of Digested Food

The process through which the end products of digestion are given into the blood circulation or in the lymph from the intestinal mucosa is called as absorption. This process occurs either by the passive, active or facilitated transport mechanisms in the body. The ileum part of the small intestine is the part where absorption of food occurs. It is specially adapted to carry out this function. This animated video selected for you is the best for helping you understand the process of absorption perfectly.

absorption

3 mins