Question

Among the facial bones, how many of them exist in pairs?
(A) 5 pairs
(B) 6 pairs
(C) 14 pairs
(D) 7 pairs

Answer 1

Hint: The skeleton of the head is called skull. It rests on the upper end of the vertebral column and the bony structure of the skull consists of four parts such as cranium, facial bones, hyoid and ear bones. Facial bones constitute the front part of the skull, skeleton of lower jaw, hard palate and nose.

Complete answer:
Now let us see number and types of facial bones :-
Nasal Bone :- it is present in pairs and is 2 in number. It is located at the Bridge of nose.
Maxillae :- it is present in pairs and is 2 in number. it is located at Upper jaw; articulates with every bone of the face except the mandible.
Zygomatic :- it is present in pairs and is 2 in number. It is located at the Prominence of the cheek.
Lacrimal :- it is present in pairs and is 2 in number. it is located at Thin bone houses lacrimal sac
Palatine :- it is present in pairs and is 2 in number. It is located at Make posterior part of the hard palate and forms the floor and lateral wall of the nasal cavity.
Inferior nasal conchae :- it is present in pairs and is 2 in number. It is located at the Form part of the inferior lateral wall of the nasal cavity, clear air that passes through the nose.
Vomer :- it is not present in pairs and is usually 1 in number. It is a triangular bone that forms an inferior portion of nasal septum.
Mandible :- it is not present in pairs and is usually 1 in number. It is present at the Lower jaw, largest and strongest facial bone.

So our correct option is B that is 6 pairs.

Note: Functions of the Skull :
The most important function of the skull is to protect the brain. This function is mainly carried out by the cranium.
The skull bears jaws which help the animal in cutting and masticating its food.
Ear bones help in amplification of sound.
It protects and supports the special sense organs.