Stevens- the pleural space Flashcards
___ and ___ are continuous and separate thorax into two parts
visceral and parietal pleura
merge at hilum and separate thorax into hemithoraces
the pleurae
has 8-10 mL of fluid per side
pleural space
solutes (sodium, chloride, bicarbonate), glucose, albumin (greater than blood)
composition of pleural space
pH of pleural space
7.6
why is pH of pleural space alkaline
high bicarb concentration
contains macrophages, lymphocytes, mesothelial cells
pleural space
pressure in pleural space
negative (-4 to -5 cmH2O)
how is fluid drawn into pleural space during breathing
by negative pressures
fluid goes from capillaries to pleural space by what
negative pressure
fluid from pleural space moves out through what
lymphatics and mesothelium
net driving force of fluid into pleural space greater where
parietal space
can accommodate very substantial increases in fluid flux
lymphatics
only accumulates in the pleural space with
high fluid production, impaired lymphatic
clearance, or both
fluid
too much fluid in the pleural space
pleural effusion
