Mouth

Mouth:

Digestion of food starts from the mouth, called ‘Oral Cavity’. There are many other parts present inside the mouth that help in the digestion of food i.e. tongue, teeth, salivary glands, etc. First of all, teeth cut the foods in to smaller pieces, and then saliva, secreted by the salivary gland, is mixed with these small pieces of food to make them soften. After that, our tongue and other helpful muscles push the food into food pipe. 

Teeth:

There are 32 small teeth are found in the mouth. Each tooth is made of a bone-like substance called 'dentin'.  Teeth covered in a layer of enamel—the hardest substance in the body. The teeth are designed for cutting and grinding food into smaller pieces.

Digestive System

What is Digestive system? The digestive system is a group of organs that is working together to
convert food into energy and basic nutrients to feed the entire body. Food passes through a
long tube inside the body known as the alimentary canal or the gastrointestinal tract (GI
tract). There are several alimentary canal-

1. Oral cavity
2. Pharynx
3. Esophagus
4. Stomach
5. Small
6. Intestines
7. Large intestines.

There are several important accessory organs that help your body to digest food but do not have
food pass through them. Accessory organs of the digestive system is that

1. Teeth
2. Tongue
3. Salivary glands
   
4. Liver
5. Gallbladder
6. Pancreas

To achieve the goal of providing energy and nutrients to the body, six major functions take place in the digestive system:

1.  Ingestion
2.  Secretion
3.  Mixing and movement
4.  Digestion
5.  Absorption
6.  Excretion

human body

Explore the human body like never before! With hundreds of interactive anatomy pictures and descriptions of thousands of objects in the body, InnerBody.com will help you discover what you want to know about human anatomy, right here at your fingertips.
Join the millions of students, patients and inquisitive visitors – start your anatomy exploration by clicking on any of the systems above.