Q. 54.3( 3 Votes )

Explain the process of digestion in the buccal cavity with a note on the arrangement of teeth.

Answer :

The buckle cavity or oral cavity performs two major functions i.e., mastication of food (chewing the food into semisolid paste) and facilitation of swallowing (by mixing food with saliva).

Firstly, food gets mixed with saliva which softens and lubricates the food and cheering process breaks the food into smaller pieces.


In buckle cavity digestion of same food components takes place. Digestion of carbohydrates starts in the buckle cavity. The food is mixed with saliva which contains salivary anylase. This enzyme converts starch into maltose, isomaltose and α-dextrins. 30% of the starch in food is hydorlysed in the buckle cavity.


Starch Maltose + Isomaltose + α-dextrins


The oral cavity has a number of teeth and a muscular tongue. Each tooth is embedded in a socket of jaw bone. This type of attachment is called the phycodont. The human gets two sets of teeth in their lifetime they are temporary teeth and permanent teeth.


Temporary teeth or milk teeth are deciduous and are replaced by permanent teeth. This type of arrangement is called diphyodont. The arrangement of teeth is illustrated below.



There are four types of teeth in human beings – incisors, canines, premolars and molars, denoted as I, C, PM and M respectively.


Arrangement of teeth in each half of the upper and lower jaw in the order I, C, PM, M is represented by a dental formula which in human is


That is two incisors, one canine, two premolars and three molars on each side of jaws. Thus there are 32 teeth in an adult human.


Incisors is for cutting, canine is for tearing, premolars and molars are for grinding and crushing.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Rapid Quiz on DigestionRapid Quiz on DigestionRapid Quiz on Digestion58 mins
NCERT Exemplar | Breating & Exchange of Gases Part 2NCERT Exemplar | Breating & Exchange of Gases Part 2NCERT Exemplar | Breating & Exchange of Gases Part 222 mins
Digestion & Absorption | Quiz/Test TimeDigestion & Absorption | Quiz/Test TimeDigestion & Absorption | Quiz/Test TimeFREE Class
Clear your concepts of Anatomical structure of IntestineClear your concepts of Anatomical structure of IntestineClear your concepts of Anatomical structure of Intestine53 mins
Target NEET 2021-2022 | Important Questions of NCERT Exemplar |  Digestion & AbsorptionTarget NEET 2021-2022 | Important Questions of NCERT Exemplar |  Digestion & AbsorptionTarget NEET 2021-2022 | Important Questions of NCERT Exemplar | Digestion & Absorption35 mins
FAQs on Digestive SystemFAQs on Digestive SystemFAQs on Digestive System57 mins
Learn Digestive System through MindmapLearn Digestive System through MindmapLearn Digestive System through Mindmap61 mins
NCERT Exemplar | Digestion & Absorption Part 2NCERT Exemplar | Digestion & Absorption Part 2NCERT Exemplar | Digestion & Absorption Part 225 mins
Structure of Alimentary CanalStructure of Alimentary CanalStructure of Alimentary Canal61 mins
Master Glands of Alimentary Canal {Special}Master Glands of Alimentary Canal {Special}Master Glands of Alimentary Canal {Special}79 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses