Question

What do you mean by Oesophagus ?
​What is called Buccal Cavity ?
What is Small Intestine ?
Define Stomach ? ​

Answer 1

Explanation:

This pipe is known as the food pipe or the oesophagus. ... Food reaches the stomach from pharynx through peristaltic contractions.

The mouth is also called as the buccal cavity or the oral cavity. ... The mouth is an opening through which the food is taken inside the body.

Ironically, the longest part of the alimentary canal is the small intestine. It is a highly coiled structure of about 7.5 meters in length. It is a very narrow tube with a large internal surface area. It is the site of complete digestion in humans. It absorbs digested food completely. It secretes intestinal juice. It receives bile juice from the liver and pancreatic juice from the pancreas.

The small intestine is divided into three parts:

Duodenum

Jejunum

Ileum

The stomach is a sack like muscular organ located in the upper-left side of the abdomen just below the liver. The primary function of the stomach is to hold and breakdown food and liquid that we consume in our meals

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Answer 2

OESOPHAGUS

• It is a long food pipe which carries food from mouth to stomach.

BUCCAL CAVITY

• It consists tongue and teeth.
• Tongue is a muscular organ which helps in mixing food with saliva.
• Teeth are responsible in cutting, tearing, grinding and chewing the food.
• Digestion occurs in buccal cavity.

SMALL INTESTINE

• Small intestine is the longest part of the alimentary canal.
• It is responsible mainly for digestion and absorption.
• It breaks the large fat molecules into smaller molecules.

STOMACH

• Stomach is a J shaped part of an alimentary canal.
• It is a store house of food.
• It is responsible for softening the food its muscular walls of stomach helps in mixing the food properly.
• It is also involved in digestion.

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