Respiratory anatomy Flashcards
Where does the trachea arise?
Lower border of cricoid cartilage
At what level does the trachea bifurcate?
T4/T5 (sternal angle/ carina)
Conducting airways are lined with what type fo cells?
Ciliated pseudo stratified columnar cells.
What is the innervation of the trachea?
Recurrent laryngeal nerve
What are the pleura?
Serous membranes that line the lungs and thoracic cavity, allowing for efficient respiration.
What is the pleural cavity?
A potential space between the visceral and parietal pleura.
Where is the visceral pleura found?
Covers the lungs and extends into the interlobular fissures.
Where is the parietal pleura found?
Covers the internal surface of the thoracic cavity.
What are the 2 functions of the serous fluid in the pleural cavity?
Lubricates pleural surfaces
Produces surface tension to ensure lungs expand when thorax does
What is the innervation of the parietal pleura?
Phrenic and costal nerves (produces well localised pain)
What is the innervation of the visceral pleura?
Pulmonary plexus (network of nerves derived from the sympathetic trunk and vagus nerve)
What is the parietal pleura sensitive to?
Pressure, pain, temperature
How many lobes does the right lung have?
3 (horizontal and oblique fissure)
How many lobes does the left lung have?
2 (oblique fissure)
Which bronchus has a higher incidence of foreign body inhalation?
Right main bronchus
