Anatomy and Functions of the Paranasal Sinuses

Which sinus is located closest to the forehead?

• Maxillary sinus

• Frontal sinus

• Ethmoid sinus

• Sphenoid sinus

What is unique about the ethmoid sinuses compared to other sinuses?

• They are located in the maxilla bone

• They consist of multiple air cells

• They are the most posterior sinuses

• They are a single cavity

Which sinus is the most posterior among the paranasal sinuses?

• Frontal sinus

• Ethmoid sinus

• Maxillary sinus

• Sphenoid sinus

What is one proposed function of the paranasal sinuses?

• To increase the weight of the head

• To produce sound

• To store excess mucus

• To humidify and heat inhaled air

How do the sinuses potentially enhance speech?

• By reducing echo

• By amplifying sound

• By increasing speech resonance

• By filtering sound waves

What is the analogy used to describe the protective function of the sinuses?

• A shield deflecting blows

• A crumple zone in a car

• A helmet protecting the head

• A sponge absorbing water

What happens to the force of impact when a car's front crumples during a crash?

• The force is increased

• The force is concentrated

• The force is distributed over time

• The force is eliminated