Question

The teeth placed at the end of the buccal cavity and help in chewing food are which of the following?
a) Incisors
b) Molars
c) Canines
d) Premolars

Answer 1

Hint: As we know teeth are hard structures which are found exclusively in all vertebrates. Some invertebrates have analogous teeth, but they are quite different in their structure and also in their functions. There are four different types of teeth found in humans which serve different purposes.

Complete answer:
The four different types of teeth found in humans are;
a) Incisors – Present at the front of the mouth and have sharp edges which are adapted for cutting food into small, chewable pieces.
b) Canines - They are also called cuspids which are situated at the ‘corners’ of the dental arches. They are characteristically sharp, elongated and pointed surfaces. Their main function is to grip and tear food such as meat.
c) Premolars - Also called bicuspids and are located behind the canines. These teeth have a flat surface with ridges which are adapted for crushing and grinding food into smaller portions.
d) Molars - They are the largest and strongest teeth. It has a large and flat biting surface, which is adapted for grinding food. Humans have twelve molars, six in each jaw. Four of those are wisdom teeth, which are also called the third molar, which come in between the ages of seventeen to twenty five.

So the correct answer is 'Molars' which is option B.

Note:
Adults have thirty two teeth which are called permanent or secondary teeth, and it includes, eight incisors out of which four incisors in the upper jaw and four incisors in the lower jaw, four canines out of which two canines in the upper jaw and two canines in the lower jaw, eight premolars out of which four premolars in the upper jaw and four premolars in the lower jaw and twelve molars out of which six molars in the upper jaw and six in the lower jaw.