Fund 51 - ch 17 Flashcards
(131 cards)
crackles (inhale crac, but not all at once)
nonmusical, discontinuous popping during inspiration
hemoptysis
hemoptysis - blood from respiratory
larnyx
watchdog of lungs. protects from foreign substances.
parietal pleura
parietal pleura - lines thoracic cavity, lateral wall of mediastinum, diaphragm, and inner aspects of ribs.
mediastinum
mediastinum - all thoracic tissue outside of lungs, ie heart, thymus, aorta and vena cava, esophagus.
3 types of alveoli
alveoli - 3 types. type 1 and 2 are the epithelium. type 1 is 95% of surves and is a barrier btw air and alveolar surface. type 2 is 5% and produces type 1 cells and surfactant. 3rd type is alveolar macrophages.
respiration
after capillary exchange, blood enters venous circulation and goes to pulmonary circulation. O2 in blood in capillaries is lower than in the alveoli. O2 then diffuses from alveoli to blood. Co2 the other direction.
respiration definition
gas exchange btw atmospheric air and blood and blood and cells.
inspiration during first
third of respiration cycle, expiration during latter 2/3.
tidal volume
500 mL - may not vary even with severe disease.
inspiratory reserve volume USE your reserve - (inspired but reserved by the movie 3000)
- 3000 mL. max volume of air that can be inhaled.
expiratory reserve volume (she expired at 11 and went to heaven)
- 1100 mL - max that can be forceably exhaled.
residual volume (cindella was just residual)
1200 mL - air remain gin in lungs after max exhalation
vital capacity (it is vital to take it all 46)
4600 mL - max exhaled from point of max inspiration.
inspiratory capacity (my inspiration maxed out at 35)
- Inspiratory capacity is the sum of tidal volume plus inspiratory reserve volume.
functional residual capacity (not functioning at 23)
2300 mL - air remaining in lungs after normal expiration
total lung capacity (totally inspiring at 58)
5800 mL - air in lungs after max inspiration.
pulmonary is considered low or high pressure?
low pressure
perfusion is influenced by
alveolar pressure.
severe hypoxia occurs when shunting exceeds
20%
PAO2 is
this pressure ensure diffusion of O2 access the alveolar.
he higher the PaO2, the greater the amount of
O2 dissolved. therefore the amount of dissolved O2 is directly proportional to the parietal pressure
patterns of perfusion are determined (the pattern of art, gravity and alveoli)
artery pressure, gravity and alveolar pressure.
oxygen saturation - 150 mm Hg
hemoglobin is 100% saturated.