Paranasal sinuses

Front

Name the four paranasal sinuses and their bones.

Back

Frontal (frontal bone), Maxillary (maxilla), Ethmoid (ethmoid bone), Sphenoid (sphenoid bone).

Front

What is the largest paranasal sinus?

Back

Maxillary sinus (Antrum of Highmore).

Front

List three functions of the paranasal sinuses.

Back

Lighten skull, produce mucus, resonance for voice, warm/humidify air.

Front

Why can maxillary sinus infections feel like toothaches?

Back

The sinus floor is close to roots of posterior maxillary teeth.

Front

What suture joins the left and right maxillae?

Back

Intermaxillary suture (aka median palatine suture / palatine raphe).

Front

What suture separates the premaxilla from the palatine processes?

Back

Incisive suture.

Front

What suture separates the palatine processes of maxilla from palatine bones?

Back

Transverse palatine suture.