Resp/Pulm Flashcards
What is the formula for figuring out the functional residual pulmonary capacity?
Expiratory reserve volume + residual volume
(ERV + RV )
_____ nerve fibers stimulate bronchodilation via _______ receptors
Sympathetic nerve fibers
B2-adrenergic receptors
What is the Frank-Starling Law?
The heart’s ability to change contractions in response to CO2 levels
The R bronchial veins drain into what?
Azygos vein
(T or F) Intrapleural pressure is always less than intrapulmonary pressure
True
R lung has how many lobes?
3
The formula for Functional Residual Capacity
FRC = RV + ERV
(Residual volume + Expiratory Reserve Volume)
What artery carries blood from aorta to lungs, bronchi and pleura?
Bronchial artery
The volume of air that can be forcibly inspired beyond the tidal volume is called what?
Inspiratory reserve volume (IRV)
What changes can be observed during spirometry of a COPD pt?
Decreased FEV1
Surfactant is created by type ___ alveolar cells, and ___% of the surfactant complex is protein
2
20%
What level of the respiratory tract is affected in chronic bronchitis and emphysema?
Bronchitis - Terminal airway
Emphysema - Alveoli
Acute exacerbation of chronic bronchitis can be caused by
Virus or bacteria or both
H influenza, strep pneumoniae, moraxella catarrhalis
How does a beta-2 agonist inhaler help sx of chronic bronchitis?
Beta-2 adrenergic receptors in the bronchi, when activated, ultimately trigger L type calcium channels which causes bronchodilation
Inflammation in chronic bronchitis is due to
Lymphocytic and eosinophilic involvement, similar to asthma
