Advertisements
Advertisements
Question
Given the dental formula of human beings
Advertisements
Solution
The dental formula expresses the arrangement of teeth in each half of the upper jaw and the lower jaw. The entire formula is multiplied by two to express the total number of teeth.
The dental formula for milk teeth in humans is `2102/2102xx2 = 20`
Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, and 2 molars. Premolars are absent in milk teeth.
The dental formula for permanent teeth in humans is: `2123/2123xx2 = 32`
Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, 2 premolars, and 3 molars. An adult human has 32 permanent teeth.
RELATED QUESTIONS
Answer briefly:
Why are villi present in the intestine and not in the stomach?
What are the basic layers of the wall of alimentary canal?
Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.
Explain the term thecodont and diphyodont.
The dental formula in human beings is ______.
Types of teeth in human are ______.
Number of premolars in human is ______.
A gland not associated with the alimentary canal is ______.
Match the two columns and select the right one among options given
| Column I | Column II |
| A. Duodenum | i. A cartilaginous flap |
| B. Epiglottis | ii. Small blind sac |
| C. Glottis | iii. ‘U’ shaped structure emerging from the stomach |
| D. Caecum | iv. Opening of wind pipe |
Dental formula in human beings is ______.
What do we call the type of teeth attachment to jaw bones in which each tooth is embedded in a socket of jaws bones?
Stomach is located in upper left portion of the abdominal cavity and has three major parts. Name these three parts.
Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by ______.
