Respiratory Review Flashcards
Name the important structures of the respiratory tract.
Nasopharynx, oropharynx, larygopharnx, trachea, lungs
Nasopharynx?
Allows air to pass through
What is the histology of the nasopharynx and how does this assist the structure?
Pseudostratified ciliated mucosa (produces mucus, sweeps away debris)
Where is the Oropharynx located?
Posterior to the oral cavity- soft palate, by the epiglottis
What is the histology of the oropharynx and how does this assist the structure?
Stratified squamous epithelium to protect against mechanical and chemical abrasion
Laryngopharynx?
Allows food and air to pass through
What is the histology of the laryngopharynx?
Stratified squamous epithelium
What does the trachea consist of?
- mucosa= psudostratified ciliated columnar (cilia beats upward, goblet produces mucus)
- submucosa = connect tissue; produces mucus
- adventitia (outer layer) = connective tissue and cartilage
Root of the lungs?
vascular and bronchial connections that suspend lung
Hilus?
Where the vessels and bronchi enter the lung
How many lobes do the lungs consist of?
5 lobes that are divided by CT (each segment with separate arteries, veins, bronchus )
If one lobe was removed, would it affect the other lobes?
No, because each segment has its separate arteries, veins, and bronchus so if one was removed, it would not damage other parts
Pulmonary arteries?
Carry deoxygenated blood from the heart
Pulmonary capillaries?
site of gas exchange
Pulmonary veins?
Return oxygenated blood to the heart
