16 Questions
What are the main functions of the respiratory system?
Gas exchange between air & circulating blood, protects respiratory surfaces, allows for speech, provides protection against pathogens, regulate blood volume, help regulate BP and bodily fluid pH
Name some structures of the upper respiratory system.
Nose, nasal cavity, paranasal sinuses, pharynx
What is the function of the nasal mucosa?
Mucous production, trapping foreign particles like dust & allergens, warming the air as it enters the body
What are nasal turbinates (conchae) and their use?
Structures projecting medially from the lateral walls of the nasal cavity, working with nasal mucosa to...
What is the main site of gas exchange in the lungs?
Alveoli
What are the two types of cells found within the alveoli?
Type 1 alveolar cells and Type 2 alveolar cells
Which type of alveolar cells are responsible for secreting surfactant?
Type 2 alveolar cells
What is the function of Type 1 alveolar cells?
Provide a large surface area for gas exchange with minimal permeability
What surrounds the alveoli and is responsible for the exchange of gases between the lungs and circulating blood?
Capillaries
What is the microscopic structure where gas exchange occurs in the lungs?
Alveoli
What do Type 2 alveolar cells secrete?
Surfactant
What is the function of surfactant in the alveoli?
Reduce surface tension
Where does gaseous exchange occur between the lungs and the circulatory system?
Alveoli
What is the role of capillaries surrounding the alveoli?
To facilitate the exchange of gases between the lungs and circulating blood
What is the primary function of Type 1 alveolar cells?
Providing a large surface area for gas exchange
What is the function of Type 2 alveolar cells in the lungs?
Secrete surfactant
Test your knowledge of the respiratory system anatomy from the nasal cavity to the nasopharynx. Learn about the functions and structures of the paranasal sinuses, pharynx, and nasopharynx.
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