Ch. 19 (Thorax & Lungs) Flashcards
What vertebrae is known as the vertebrae prominens?
C7
What is the middle section of the thoracic cavity where the esphogaus, trachea, heart and great vessels are?
mediastinum
What is located on each side of the mediastinum?
pleural cavities
What do pleural cavities hold?
the lungs
What do we call the top region of the lung borders?
apex
highest point of lung tissue
What do we call the bottom region of the lung borders?
base
Where does the base of the lungs rest?
in the pleural cavities, above the diaphragm
What is the separator between the lungs and the abdominen?
diaphragm
The lungs are assymetrical.
Which lung is shorter and why?
right, to make room for the liver
How many lobes does the right lung contain?
3
How many lobes does the left lung contain?
2
Why are the two lobes on the left lung, narrower?
to make room for the heart
What lung has no middle lobe?
left (only two lobes)
Describe the size of the lobes in the lungs when assessing the anterior chest.
- mostly upper and middle lobes
- very little lower lobe is shown
Describe the size of the lobes in the lungs when assessing the posterior chest.
- almost all lower lobe
What thin slippery envelope is located between the lungs and chest wall?
pleurae