Skull - Ethmoid Bone

Question 1

A delicate bone that sits in the superior part of the nasal cavity between the orbits and is anterior to the sphenoid
*consists of a perpendicular plate and horizontal plate

Answer 1

Ethmoid bone

Question 2

Forms the superior part of the nasal septum and articulates with the vomer bone
*continues past the horizontal plate and is called the crista galli

Answer 2

Perpendicular plate

Question 3

Has a medial and lateral part

Answer 3

Horizontal plate

Question 4

What is the medial part of the horizontal plate?

Answer 4

The cribiform plate

Has many perforations for the olfactory nerves. It lies between the orbital plates of the frontal bone

Question 5

Suspends the labyrinth of the ethmoidal cells that open into the nasal cavity
They are irregular curved bony projections

Inside are the ethmoid sinuses

Answer 5

Lateral part of horizontal plate of ethmoid bone