Identify the bridge-like structure labeled “A” that is formed by the articulation of two bones.

Identify the specific name of the entire bone labeled “B” 

Identify the bone marking labelled ‘8’.    

Identify the entire bone highlighted in red.

Identify the bone marking labeled “4”    

Identify the bone marking highlighted in blue labeled “B”

Identify the air-filled cavity highlighted in red labeled “B”

Identify the entire bone labeled “B”. Is it right or left?

Identify the bone labelled ‘2’. Is it right or left?

Identify the group of bones labeled “A” (do not give individual bone names)