Larynx
What is the opening between the true vocal cords called?
Glottis
What does the trachea divide into?
left and right primary bronchi
Does bronchodilation increase or decrease airway resistance?
decrease
Primary function of alveoli
gas exchange
What are the 3 paired cartilages?
arytenoids, corniculate, cuneiform
What muscle type is present in the trachea?
smooth muscle
As tubes get smaller, what happens to the relative amount of smooth muscle and cartilage?
cartilage decreases, smooth muscle increases
True or false: cilia are present in alveoli
false
What are the three unpaired cartilages?
thyroid, cricoid, epiglottis
Cartilage at bifurcation that is sensitive and initiates the cough reflex
carina
What defines bronchopulmonary segments?
tertiary bronchi
What are the macrophages in alveoli called?
dust cells
What kind of cartilage is the epiglottis comprised of?
elastic
What muscle contracts during coughing?
trachealis
How many secondary bronchi are there?
2; 1 per lobe
Function of Type 2 pneumocytes
produce surfactant
What type of epithelium is present in the larynx?
pseudostratified ciliated columnar epithelium
What type of epithelium is present in the trachea?
pseudostratified ciliated columnar epithelium with goblet cells
How many lung lobes are present in the right lung?
3
Structure of type 1 pneumocytes
thin squamous epithelial cells