Upper Respiratory Tract

Question 1

What divides the nasal cavity into left and right

Answer 1

Median nasal septum

Question 2

Name the paranasal sinuses

Answer 2

Frontal

Ethmoidal

Maxillary

Spheroidal

Question 3

What epithelium lines sinuses

Answer 3

Respiratory epithelium

Question 4

What structures are found in nasal cavity walls and what do they create

Answer 4

Conchae/turbinates are found in the walls

These bony projections create a large vascular mucosal surface area

Question 5

What are the functions of the vascula mucosa and why does the mucosa do this

Answer 5

Warms inhaled air to warm it to body temp

Humidifies inhaled air to create the best conditions for gaseous exchange in the lungs

Question 6

What is the function of venous plexuses in the nasal cavity

Answer 6

The plexuses swell to alternate air flow from site to side to prevent over-drying of the vascular mucosa

Question 7

What forms the pharynx

Answer 7

Nasopharynx

Oropharynx

Laryngopharynx

Question 8

During swallowing, what occurs to prevent food/liquid from passing into the trachea

Answer 8

Laryngeal inlet narrows and epiglottis folds downwards, over the laryngeal inlet

The vocal cords adduct together and act like a sphincter to close off the entrance to the trachea

Question 9

What muscles and nerves are involved in vocal cord movement

Answer 9

Intrinsic laryngeal muscles

Recurrent laryngeal nerve