Label the below-given figure as directed below in (i) to (iv) and give the name of each type of tooth. (i) The cutting and biting teeth as ‘A’ (ii) The piercing and tearing teeth as ‘B’ (iii) The grinding and chewing teeth as ‘C’ (iv) The grinding teeth present only in adults as ‘D’

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Solution

Various types of teeth:
The teeth that are used to chew and bite the food are called incisors, these are labelled as A, and are 8 in number.
The teeth labelled as B are canines that are primarily present in carnivores for tearing and piercing, these are 4 in number.
The next 8 teeth are called pre-molars and are labelled as C in the figure, these are mainly used for grinding and chewing.
The teeth labelled as D are called molars and are present only in adults, these are 12 in number.
Figure showing various types of teeth:

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Question 26
Label the below given Figure as directed below in (i) to (iv) and give the name of each type of teeth.

i) The cutting and biting teeth as ‘A’
ii) The piercing and tearing teeth as ‘B’
iii) The grinding and chewing teeth as ‘C’
iv) The grinding teeth present only in adult as ‘D’

Which one of the following pairs of types of teeth perform one common function as stated against it ?

(a) Incisors, canines - Holding

(b) Canines, premolars - Tearing

(d) Molars, incisors - Tearing

Q. Match the following:

\begin{matrix} Types of Teeth & Functions i) Incisors & A) Piercing and tearing ii) Canines & B) Grinding food iii) Premolars & C) Cutting and biting iv) Molars & D) Crushing food \end{matrix}

Teeth, that are a part of the buccal cavity, help in the mechanical breakdown of food.

The given illustration depicts the type of teeth present in the mouth.

The teeth that perform the function of piercing and tearing are labelled as

Q. Study the following passage:
Most of the vertebrates have jaws with teeth. The mode of arrangement of teeth on the jaws is called dentition.
The various types of teeth seen in mammals are incisors (I) canines (C) premolars (P) and molars (M). They are used for biting, tearing, chewing and grinding, respectively.
Canines, the tearing teeth are well-developed in carnivores and ill-developed or absent in herbivores.

Now answer the following:
(i) In frogs, all the teeth in the upper jaw look-alike, whereas in human beings they are different. The type of dentition in human beings can be called .........
(a) Homodont (b) Isodont (c) Heterodont (d) Acrodont
(ii) The dental formula of a mammal is written as ICPM=2023/1023. The teeth missing in it are ................
(a) Incisors (b) Canines (c) Premolars (d) Molars

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