Lecture 20: Lungs and Bronchial Tree Flashcards
What is the visceral pleura?
covers and follows indentations of lung
What is the parietal pleura?
lines thoracic cavity
What is the pleural recess?
large spaces or recesses formed by the reflection of parietal pleura from one area to another
What is the costodiaphragmatic recess?
space where costal and diaphragmatic pleura meet
What is the costomediastinal recess?
space where mediastinal and costal pleura meet
allows for expansion of lungs during inspiration
How many lobes does the right lung have? left?
right: 3
left: 2
What are the lobes of the lungs supplied by?
secondary bronchi
How many lobules are there on right lung? left?
right: 10
left: 8
What are the lobules of the lungs supplied by?
tertiary bronchi
What is the carina?
located at the split of the trachea where it divides into the two primary bronchi, produces intense cough reflex when foreign bodies encounter it
What bronchus is more likely to have aspirated objects in it? why?
right because is is shorter, straighter and larger than left
What is the angle between primary bronchi?
62 degrees
Where does gas exchange first occur?
respiratory bronchi
