Upper Respiratory System Flashcards
What divides the nose?
The nasal septum
Where and what is the nasal cavity?
Posterior to the nose and is lined with mucosa lining
Function of the mucosa lining?
Warms the incoming air and traps foreign objects
How are the foreign objects disposed of within the nasal cavity?
Ciliated cells in the nasal mucosa propel trapped debris towards the throat for digestion
What are the ridges called that are found within the nasal cavity?
Conchae
What does conchae do?
Increase the mucosal surface area and air turbulence allowing more particulates to contact the nasal cavity walls instead of entering the lungs.
How is the hard palate made?
Bones
How is the soft palate made?
By muscle
Where and what is the uvula?
It ends the nasal cavity and prevents food from entering other parts of the nasal cavity when swallowed
What surrounds the nasal cavity?
Paranasal sinuses
3 functions of the paranasal sinuses?
- Lighten the skull
- Resonate speech
- Produce mucus
What is the pharynx know as?
The throat
What lines the pharynx?
Clusters of lymphatic tissue known as tonsils
What do tonsils do?
Trap and remove foreign pathogens entering the throat
What are the three types of tonsils?
- Pharyngeal tonsils
- Palatine tonsils
- Lingual tonsils