Axial Skeleton System : The Skull MCQ - Practice Questions with Answers

• Skull forms the skeleton of the head. 
• It consists of total 29 bones
• It includes Cranial Bones, Facial bones, Ear ossicles and Hyoid bone
• The skull region articulates with the superior region of the vertebral column with the help of two occipital condyles (dicondylic skull).

A) Cranial Bones:

• The cranium is formed by 8 bones. 
• The bones which form the cranium are: 

PAIRED BONES

• PARIETAL
• TEMPORAL 

UNPAIRED BONES

• FRONTAL
• OCCIPITAL
• SPHENOID
• ETHMOID

• The cranial cavity, in which the brain is lodged, posteriorly opens by foramen magnum.
• The brain is connected to the spinal cord at this foramen.
  

Hyoid Bone:

• The hyoid bone is situ­ated in the wall of the upper part of the throat, just above the larynx. 
• Although it is not a bone of the skull proper, it is customarily considered with that portion of the skeleton. 
• It serves as a point of attachment for some of the muscles of the tongue and floor of the mouth but does not articulate with any other bones.

Ear ossicles:

• These are the ear bones. 
• There are six ossicles: 2 mallei, 2 incus and 2 stapes.

Facial Bones:

• There are 14 bones which form the skeleton of the face

PAIRED 

• MAXILLA
• ZYGOMATIC (CHEEK)
• PALATINE
• LACRIMAL 
• NASAL
• INFERIOR NASAL CONCHAE

UNPAIRED 

• MANDIBLE (ONLY MOVABLE)
• VOMER