Tracheal anatomy Flashcards
(22 cards)
Where does the trachea begin?
C6
Where does the trachea end?
T4-T6 (the carina)
How wide is the adult trachea?
2.5 cm
How long is the adult trachea?
10-13 cm
What pores allow air movement between alveoli?
Pores of Kohn
The carina corresponds with the angle of ______
Lewis
Type I pneumocytes provide
surface area for gas exchange
Type II pneumocytes provide what function
Surfactant production
Type III pneumocytes are ___
macrophages
Right mainstem bronchus takeoff angle and length
25 degree
2.5 cm
Left mainstem bronchus take off and length
45 degree take off
5cm
In a textbook patient the distance from incisors to the larynx is ___ cm
13 cm
The carina is made up of what type of cells
cuboidal epithelium
Sensory innervation to the trachea is supplied by the ___ nerve
Vagus
What is the distance from the incisors to the carina in a textbook patient
26
Neck flexion makes the distance from the incisors to the carina ___
shorter
Neck extension makes the distance from the incisors to the carina ___
longer
In children up to 3 years both bronchi take off at a ___ degree angle
55
airflow velocity ___ as the airway bifurcates
decreases
Goblet cells and ciliated cells ___ as the airway bifurcates
decrease
Total cross sectional area ___ as the airway bifurcates
cross-sectional area
