Lab: Pleura and Lungs Flashcards
Visceral and parietal pleura relation
continuous, fold back at roots of lungs
From what embryonic tissue do the lungs develop?
endoderm from the primitive gut tube
From what embryonic structure do the lungs develop?
gut tube
Lung buds develop into what tissue
splanchnic mesoderm
Pulmonary ligament
medial lung, weak attachement between pleural layers
Parietal pleura innervation
intercostal nerve
Visceral pleural innervation
phrenic nerve
If you’re going to drain the pericardial sac, where do you put the needle in
costomediastinal recess
poke into pericardial sac without worrying about poking a lung
Phrenic nerves lie anterior/posterior to root of lung
anterior
Vagus nerves lie anterior/posterior to root of lung
posterior
Pancoast tumor
lung tumor restricted to upper cervial portion of lung
Pancoast tumor impinges on…
brachial plexus
subclavian artery and vein
Horner’s syndrome
RALS
right: anterior
left: superior
where pulmonary artery is in relation to bronchus at hilum
Arch depression on right lung
arch of azygous vein
Azygous vein is on which side?
right
Recurrent laryngeal nerve wraps around what on each side?
right: subclavian artery
left: ligamentum arteriosum
Tracheal branches at what vertebral level?
T4/T5
What is the point of separation where trachea splits
carina
If you inhale something, into which 1˚ bronchus is it going to go?
right, angled more vertically
left has to go around the heart
Is lymphatic drainage of lung segmental like airway and blood flow?
NO!
may have fluid buildup after partial resection of lung
Does lymph flow from one lung to the other?
yes
some lymph nodes connect the right and left lung
Etiology of spontaneous pneumothorax
ruptured bulla
air escapes from lung into pleural space
or something pathology crossing lung parenchyma
What is it called when you have a stab wound and get a pneumothorax from outside air?
open pneumothorax
mediastinal structures move with inspiration to unaffected side and back with expiration
Etiology of tension pneumothorax
some structure acting like valve, cannot escape
mediastinal structures moved over
compression of great vessels
Tx of tension pneumothorax
tube thoracostomy
4th or 5th intercostal space
Pleural effusion
increase of fluid in the pleural space
Hemothorax
blood entering the pleural sapce
