Pulmonary Anatomy and Phys Flashcards
Which part of the lungs has the least ammount of airway resistance?
The bronchioles
When does cartilage and goblet cells end in the lungs?
At the bronchi
Describe the cell type of the lungs
Pseudostratified ciliated columnar cells extend to beginning of terminal bronchioles and then transitions to cuboidal cells.
which portions of the lung conduct respiration?
Bronchioles
Alveolar ducts
Alveoli
Mostly cuboidal until you reach the alveolae and then its squamous.
What are type I pneumocytes?
make up the majority of the alveoli are thin for gas transfer.
What are type II pneumocytes?
These are surfactant secreting cells that decrease alveolar surface tension.
What are club (clara) cells?
These are nonciliated low columnar cells in the lungs that secrete a component of surfactant, degrade toxins and act as reserve cells.
What is the equation for collapsing pressure?
Collapsing pressure = 2 (surface tension) / Radius
The smaller the alveoli the …. it is to collapse
The more likely it is to collapse
Describe the number of right and left lung lobes
Right lung has three lobes
Left lung has two lobes and a lingula.
Which lung is the most common site for inhaled bodies?
Right lung because the right main stem bronchus is wider and more vertical than the left.
Describe the relation of the pulmonary artery to the bronchus at each lung hilum
RALS
Right anterior, Left Superior.
While sitting upright if you aspirate a peanut where will it end up?
right inferior portion of the lower lobe
While sitting supine if you asprate a peanut where will it end up?
Right superior portion of the lower lobe.
Describe the structures that peforate the diaphragm
I Ate Ten Eggs At Noon
IVC at T8
Esophagus at T10
Descending aorta at T12 (and azygous vein/ thoracic duct)
