Anatomy of the Respiratory System Flashcards
What important structures are located in the lamina propria?
Arterial holes, capillaries and smooth muscle
What cervical vertebrae can be used in the chest X-ray to locate the carina?
T5
What type of epithelium lines the trachea?
Pseudostratified ciliated columnar
What does the phrase dichotomous branching mean in relation to divisions of the airway and generations of the airways?
Each time an airway is reached, it divides and provides two airways. Then those divide and provide two airways. The process continues
Generation 1
Mainstem bronchi
What is the angle of the right mainstem bronchus?
20-30 degrees from midline
What is the angle of the left mainstem bronchus
40-55 degrees from midline
Generation 2
Lobar bronchi
How does the angles of the right/left mainstem bronchus anatomically relate to problems during intubation?
We get more right than left because it is bigger in diameter and the angle is easier
How many lobar bronchi are there on the right?
3 (an upper, middle and lower)
Generation 3
Segmental bronchi
How many lobar bronchi are there on the left side?
2 (upper and lower)
For chest PT, how is the anatomy different in the left lobar bronchi from the right lobar bronchi?
There is no left middle lobe
Generations 4-9
Sub segmental bronchi
How many segmental bronchi are there within both lungs right and left? What is happening to their diameter? What is happening to the surface area of the airways cumulatively?
18; 4.5 - 13mm; they are naturally becoming smaller