Nose and Nasal Cartilages

These flashcards cover key concepts related to the anatomy and physiology of the nose and nasal cartilages as discussed in the lecture notes.

What is the function of the nasal septum?

The nasal septum separates the nasal cavities.

What are the components of the nasal septum?

The nasal septum is composed of the perpendicular plate of the ethmoid bone, the vomer, and the septal cartilage.

What protects the entrance of the external nares?

The entrance of the external nares is protected by guard hairs.

What type of epithelium lines the nasal vestibule?

The nasal vestibule is lined with stratified squamous epithelium.

What is the role of the mucous membrane in the nasal cavity?

The mucous membrane moistens air entering the respiratory system and traps dust particles.

What type of epithelium makes up the mucous membrane in the nasal cavity?

The mucous membrane consists of respiratory epithelium, which is composed of pseudostratified ciliated columnar epithelium with goblet cells.

What are nasal conchae?

Nasal conchae are three protrusions in the lateral walls of the nasal cavity that cause air to swirl and come into contact with the mucous membrane.

What are the names of the three nasal conchae?

The three nasal conchae are the superior, middle, and inferior conchae.

Where does the nasal cavity terminate?

The nasal cavity terminates at the internal nares (choanae) which lead to the pharynx.