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Mouth Buccal Cavity

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What is Buccal Cavity?

MVSAT 2024

Introduction

The mouth marks the commencement of the alimentary canal of the human digestive system, which leads to the pharynx and the oesophagus. The palate separates the mouth (or buccal cavity) from the nasal cavity in humans. The major organ of the digestive system, comprising the teeth, tongue, and salivary glands, is housed in the buccal cavity. The mouth is an orifice that allows food to enter the body. It is bordered by lips and contains the cheeks, tongue, upper jaw, and lower jaw.

About the Buccal Cavity

The upper jaw is fixed and consists of the palate, teeth, and gums that surround the teeth, forming the roof of the oral cavity. The lower jaw is moveable and serves as the floor of the oral cavity, which includes the tongue as well as the teeth and gums that surround it. The mouth is vital for speaking, and it also aids in breathing in some situations, such as when the nose is obstructed or during hard exercise.

What is the Process of a Buccal Cavity?

The buccal cavity is the first cavity of the alimentary canal and contains the teeth, tongue, and palate (the roof of the mouth). It serves as a barrier between the mouth and the nose.) The buccal cavity aids in the process of ingesting, by allowing food to enter the body.


Salivary amylase is the enzyme found in the buccal cavity. Ptyalin is a kind of amylase present in human saliva. Salivary amylase is another name for ptyalin. It is the most significant amylolytic enzyme released by the salivary glands in the mouth. Hydrolysis of starch is performed by this enzyme.

Parts of Buccal Cavity of Human

  • Lips: Lips are soft, muscular, and moveable in nature. They are created by the orbicularis oris muscle complex.

  • Labial mucosa: It is the inside lining of the lips; it is a component of the mucosa lining.

  • Buccal mucosa: It is found on the inside of the cheeks and the rear of the lips. It gives the cheeks a round contour.

  • Tongue: It is a big, muscular organ that takes up the majority of the mouth cavity. Each taste bud, which is situated in the mouth lining, has 50 to 100 taste receptor cells.

  • Teeth: Teeth are the most powerful and hard substances in the human body. A typical adult has 32 teeth, which are classified as incisors, canines, molars, and premolars. A third molar, known as the wisdom teeth, appears in a person's late teens or early twenties.

Difference Between the Mouth and Buccal Cavity

The difference between the mouth and the buccal cavity is provided below:

  • The major organ of the digestive system, comprising the teeth, tongue, and salivary glands, is housed in the buccal cavity.

  • The mouth is an orifice that allows food to enter the body. It is bordered by lips and contains the cheeks, tongue, upper jaw, and lower jaw.

Conclusion

Digestion is one of the most important life processes of the human body. There are various organs that are involved in the process of digestion. The buccal cavity marks the commencement of digestion. Teeth and tongue present in the buccal cavity lead to the oesophagus. The teeth and tongue start the process of digestion by crushing the food into smaller and digestible parts. Various enzymes in the mouth are responsible for this.

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FAQs on Mouth Buccal Cavity

1. What is the anatomy of the buccal cavity?

The lips, the lining inside the cheeks as well as lips, the front two-thirds of the tongue, the upper and lower gums, the floor of the mouth under the tongue, the bony roof of the mouth, and the tiny region behind the wisdom teeth are all part of it. These all comprise the anatomy of the buccal cavity. 

2. Who makes the floor of the buccal cavity?

The mylohyoid muscles construct the floor, which is mostly occupied by the tongue. The oral mucosa is a mucous membrane that covers the sides and under the surface of the tongue to the gums, as well as the inside part of the jaw (mandible).

3. What are the function of the mouth and buccal cavity?

The buccal cavity is the first cavity of the alimentary canal and contains the teeth, tongue, and palate (the roof of the mouth). It serves as a barrier between the mouth and the nose.) 

 

The buccal cavity aids in the process of ingesting by allowing food to enter the body (ingestion is the process of taking food into the body).


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