Introduction to the Anatomy of the Lungs Flashcards
What are the Functions of the Respiratory system?
Gas exchange
Acid - base balance
Protection from infection
communication via speech
What is gas exchange for?
Acquiring oxygen
Removing carbon dioxide
What kind of blood do pulmonary arteries carry?
Deoxygenated
What kind of blood do pulmonary veins carry?
Oxygenated
What kind of blood do systemic arteries carry?
Oxygenated
What kind of blood do systemic veins carry?
Deoxygenated
What is the normal breathing rate at rest?
10-20 breaths/min
What is the maximum breathing rate at maximum exercise?
40-45 breaths/min
What structures make up the upper respiratory tract?
Pharynx
Larynx
Vocal cords
What structures make up the lower respiratory tract?
Trachea
Lungs
From larges diameter to smallest what are the divisions of the airways?
Trachea Primary bronchus Secondary bronchus Bronchiole Aliveoli
What unique structure does the larger airways have to maintain patency?
C-shaped cartilage
At what point does gas exchange take place?
Alveoli
What are the cells of the alveoli?
Type I cells
Type II cells
Alveolar macrophages
Which cells produce surfactant?
Type II alveolar cells