Human body (The mouth)

Topic: Human Body (The Mouth)

THE TEETH

TYPES OF TEETH

Incisor

Canines

Premolar

Molars

DESCRIPTION OF EACH TYPES OF TEETH

INCISOR- They are the front teeth. Four each on the upper jaw and lower jaw making it eight.

CANINES – They are the sharp pointed teeth next to the incisors on both sides. Four in numbers, two on the lower and upper jaw each

PREMOLAR- They ae next to the canines on both sides. They are eight in numbers, four each on the lower and upper jaw

MOLARS- They are last teeth next to the premolars. They are twelve in numbers ,six each on the upper and lower jaw

USES OF EACH TYPE OF TEETH

INCISOR – It is used for biting and cutting food into pieces

CANINES – It is used for tearing and cutting

PREMOLAR- It is used for grinding and chewing 

MOLAR- It is used foe chewing and grinding

SETS OF TEETH

TEMPORARY (MILK) TEETH- This is the first set of teeth in children. 

PERMANENT TEETH- This is a set of teeth in adults or grown ups. An adult has a total of thirty-two teeth.

THE TONGUE

The tongue is the organ in the mouth that we use for tasting. With the tongue, we know something is sweet, sour, salty,  or bitter.

ROLES OF TONGUE

To support movement of food in themouth

To mix food with saliva to soften it

To support swallowing of food into the gullet

THE LIPS 

The lips are two edges of the mouth. they give beauty to the faces

USES OF LIP

They protect the teeth and tongue from being exposed

They support the food from pouring out of the mouth