Thoracic Cavity Flashcards
Where is parietal pleura found
inner surface of pulmonary cavity
How many pulmonary cavities are there and what is contained in them
2 compartments
lungs and pleurae
Where is visceral pleura found
completely investing in the lungs extending into interlobar tissues
– cannot be dissected away from the lungs
What is the pleural cavity
potential space between parietal and visceral pleurae
Where are the parietal and visceral pleura continuous with one another
Root of the lung
What is contained in the pleural cavity
serous fluid which lubricates pleural linings and provides surface tension
What is the endothoracic fascia
Extrapleural loose connective tissue that separates costal parietal pleura from thoracic wall
–provides surgical plane w/o opening the pleural cavity
What forms the pulmonary ligament
double layer of mediastinal pleura that extends inferiorly from the root of the lung
What are the 4 types of parietal pleura
Costal pleura
mediastinal pleura
diaphragmatic pleura
cervical pleura
True/False: The diaphragmatic pleura is located centrally on diaphragm
False: Found to either side of the mediastinum
What strengthens the cervical pleura
suprapleural membrane
–Thickened endothoracic fascia anchored laterally to the margins of the 1st rib
Where does the sternal line of reflection occur
anterior transition of costal pleura and mediastinal pleura
What surgical landmark is associated with the sternal line of reflection
The “Bare Area of Pericardium” parietal pericardium directly contacts the anterior thoracic wall here allowing for pericardiocentesis without compromising lung function
Where is the costal line of pleural reflection located
Occurs at peripheral transition of costal pleura and diaphragmatic pleura
Where does the vertebral line of pleural reflection occur
The posterior transition of costal pleura and mediastinal pleura
