Chapter 12 Flashcards
(40 cards)
___ cancer is MC cancer-related death in males and females
lung cancer
95% of alveolar surface is ________
type I pneumocytes
collapsed lung (decrease volume)
FAILURE TO EXPAND
decrease O2 blood is shunted
atelectasis
three types of atelectasis
resorption
compression
contraction
- atelectasis with airway obstruction
- prevents air from reaching distal airways
resorption atelectasis
atelectasis that is passive
pleural cavity fills with serous fluid, blood, air
mechanically collapses lung
compression atelectasis
air accumulates within the pleural cavity
pneumothorax
bronchial asthma, bronchiectasis, chronic bronchitis are all parts of _____
mucopurulent plug
cicatrization atelectasis (SCAR FORMATION) - recovery is limited - interstitial fibrosis - pleural fibrosis decrease inhalation
contraction atelectasis
severe trauma, infection (sepsis, pneumonia)
- diffuse alveolar damage
- bilateral vascular and epithelial damage
inflammation that prevents gas exchange –> hypoxia
acute respiratory distress syndrome (ARDS)
____ is 40% lethal, survival is 6-12 month long recovery
ARDS
2 categories of pulmonary disease
obstructive diseases
restrictive diseases
pulmonary disease with airflow resistance
decrease expiratory flow rate = wheezing
emphysema, chronic bronchitis, bronchiectasis, asthma
obstructive diseases
pulmonary disease with decrease lung expansion
chest wall disorders: pleura, NMS
interstitial lung diseases: fibrosis
decreased forced vital capacity, normal expiration
restrictive diseases
permanent pulmonary destruction *destruction of alveolar septa* *enlarged acini dyspnea NO fibrosis inflammatory cells accumulate
emphysema
two types of emphysema
centriacinar
panacinar
emphysema that is 20x MC than other type and isMC in LUNG APICES
- destruction to CENTRAL acini
risk: chronic smoking
centriacinar
emphysema in which acini are uniformly affected
MC in LOWER LUNGS
risk: a1- antitrypsin deficiency
panacinar
inflammation
smoking
progressive dyspnea, cough, hyperventilation, wheezing, weight loss
emphysema
pink puffer is associated with:
emphysema
less surface area for gas exchange –> less vascular bed for gas exchange, so body then has to compensate by hyperventilation is termed
pink puffer
hypersecretion of mucus in trachea and bronchi
Risks: smoking- air pollutants are MC
bronchial inflammation
chronic bronchitis
blue bloater is associated with:
chronic bronchitis
pronounced and productive cough lasting > 3 consecutive months in > 2 consecutive years
sputum production: yellow/green
risk for secondary microbial infection
chronic bronchitis