Flashcards in Upper respiratory tract Deck (24)
What are the functions of the nasal cavity? (4 functions)
Warms and humidifies air
Removes and traps pathogens
Drains and clears paranasal sinuses
What are the three regions of the nasal cavity?
What are nasal conchae?
Curved shelves of hard bone projecting from the lateral walls of nasal cavity?
How many conchae are there in total?
3 in each half (divided by nasal septum):
What is the function of the nasal conchae?
Increase surface area contact between air and cavity
Disrupts laminar air flow, making it slower and turbulent
What are the superior, inferior and middle meatuses?
Pathways for the air to flow from nasal cavity to naspharynx
What is the sphenoethmoidal recess?
A meatus superior to the superior chonca
What is the function of the vibrassae within the nasal cavity?
Nose hair used to filter the air
What is the function of the venous plexus within the nasal cavity?
Warms the air
What is the function of the serous glands within the nasal cavity?
Produce serous fluid that helps humidify the air
What is the name given to the serous glands within the olfactory region that are responsible for smell?
What is the choanae of the nasal cavity?
The name given to the opening of the individual meatuses into the nasopharynx
Name the four paranasal sinuses...
What sinuses drain into the sphenoethmoidal recess?
What sinuses drain into the superior meatus?
What sinuses drain into the middle meatus?
Frontal and maxillary
What sinuses drain into the inferior meatus?
From what bone is the larynx suspended?
What are the 3 regions of the larynx? What structures are found in these regions?
Supraglottis (false vocal chords)
Glottis (vocal chords)
Subglottis (cricoid cartilage)
What are the names of the cartilages associated with the larynx? (4)
What structures are found posterior to the trachea? (2)
Recurrent laryngeal nerve
What structures are found to the left of the trachea? (4)
Left phrenic nerve
Left carotid sheath
Left lobe of thyroid gland
What structures are found to the right of the trachea? (4)
Right carotid sheath
Right thyroid lobe