W9 Histology of the respiratory system Flashcards
what lines the parietal pleura (inner wall of the thoracic cavity) and the visceral pleura (outer surface of the lungs)
mesothelium (simple squamous epithelium
the space between the two layers of the pleura that are continuous at the hilum of the lungs is what
pleura cavity
pleura is a what kinda of membrane
serous (acts as lubricant)
what is pleurisy
inflammation of the pleura, a very painful condition
pleural effusion
when pleural cells secrete an excess of fluid in pathological conditions
what is the primary muscle of respiration
diaphragm
what muscles are accessory respiratory muscles that are recruited for forced inspiration/expiration
intercostal and scalene muscles (and abdominal oblique muscles)
what do goblet cells do
secrete mucus
thyroid, cricoid, arytenoid are what type of cartilage
hyaline
thyroid, cricoid, arytenoid are what type of cartilage
cuneiform, corniculate, and epiglottic are what type of cartilage
hyaline
elastic
how many secondary/lobar bronchi in left and right lung
how many tertiary/segmental bronchi in left and right lung
3 in right, 2 in left
10 in right, 8 in left
as bronchi gets smaller, increase in what
smooth muscle, elastic tissue
does type 1 or type 2 alveolar cells make up pulmonary surfactant
type II
where o lymphatic vessles drain
nodes in the hilar region
hilar region
The hilar region is where the bronchi, arteries, veins, and nerves enter and exit the lungs
what are the true ribs, false ribs, and floating ribs
true: 1-7
false: 8-10
floating: 11,12
what are atypical ribs
1,2,10,11,12
costal surface
smooth and convex, conforms to shape of cavity for lungs
medial surface
relates to vertebrae and mediastinum, cardiac impression left by heart
brings blood from heart to be oxygenated
pulmonary arteries
supply the lung tissue and visceral pleura, supply main bronchi and branches as far as the respiratory bronchi
bronchial arteries
returns oxygen-rich blood to left atrium of heart to be sent to left vesicle and then out to the body
pulmonary veins
drain the area supplied by bronchial arteries
bronchial veins
bronchial veins on the right side drain where
to the azygous vein
bronchial veins on the left side drain where
to the accessory hemiazygos or left superior intercostal veins
lymphatics from lung drain from bronchopulmonary to what
tracheobronchial nerves
subclavian artery
superior intercostal
internal thoracic
anterior intercostal
axillary artery
thoracodorsal, lateral thoracic, thoracoacromial
aorta
posterior, subcostal
