Nasal Cavity and Sinuses Concepts

Dr. Kingston's tutorial covers the anatomy of the nasal cavity and paranasal sinuses. It explains the bony composition, including the medial and lateral walls, and the role of nasal conchae and meatuses. The video also discusses the paranasal sinuses, their drainage, and connections to the nasal cavity. The tutorial concludes with a review question about the ethmoid bone's contribution to the nasal cavity.

What are the main objectives of the lesson on nasal cavity and paranasal sinuses?

• To describe the functions of the nasal cavity

• To explain the bony composition and spaces communicating with the nasal cavity

• To discuss the diseases affecting the nasal cavity

• To explore the history of nasal cavity studies

Which bones form the anterior nasal aperture?

• Maxilla and nasal bones

• Palatine and vomer

• Lacrimal and frontal

• Sphenoid and ethmoid

What separates the right and left nasal cavities?

• Nasal septum

• Nasal conchae

• Ethmoid bone

• Lateral wall

Which bone is the inferior nasal concha a part of?

• Ethmoid bone

• Maxilla

• Its own bone

• Sphenoid bone

What is the primary function of the nasal conchae?

• To connect to the sinuses

• To support the nasal septum

• To increase surface area for mucosa

• To separate the nasal cavities

Which sinus is located in the frontal bone?

• Maxillary sinus

• Sphenoid sinus

• Frontal sinus

• Ethmoid air cells

What are ethmoid air cells?

• Large single sinus in the ethmoid

• Multiple small cavities in the ethmoid

• A duct connecting to the nasal cavity

• A type of nasal concha

Where does the nasolacrimal duct drain?

• Into the middle meatus

• Into the sphenoid sinus

• Into the inferior meatus

• Into the frontal sinus

Which meatus is associated with the drainage of the maxillary sinus?

• Middle meatus

• Spheno-ethmoid recess

• Inferior meatus

• Superior meatus

What is the function of the semi-lunar hiatus?

• To connect the nasal cavity to the throat

• To separate the nasal cavities

• To provide a pathway for sinus drainage

• To support the nasal septum