Nasal Cavity And Paranasal Sinuses Flashcards
What is the nasal cavity and oral cavity connected through
It’s connected through the Nasopharynx (back of the throat)
How many paranasal sinuses are there and what are they called
There are 4:
-frontal sinus
-sphenoid sinus
-ethmoid air cells
-maxillary sinus
What are the 4 paranasal sinus lined with
Ciliated pseudostratified epithelium scattered with mucus secreting goblet cells
What are the functions of the paranasal sinuses
. Lightening weight of the head
. Humidifying air
. Supporting immune defense of nasal cavity
. Increasing fullness of voice
What is the sinus infection called
It’s when the upper respiratory infection goes to the sinus which is called sinusitis, this can also cause sensitivity to the maxillary teeth
How does the vestibule play a part in the nasal cavity
. It is the most exposed part to the environment
. Lined with stratified squamous epithelium forms protective area
. This area has hairs: VIBRISSAE covered in mucus
How does the olfactory region play a part in the nasal cavity
How does the olfactory region play a part in the nasal cavity
What closes off the connection during eating preventing food entering the nasal cavity
The soft palate and uvula
What are the bones forming the nasal cavity
What connects the nasal and oral cavity
Nasopharynx
How does the olfactory region play a part in the nasal cavity
