Lungs and Pleura Flashcards
Visceral Pleura
Adherent to lung
No somatic Sense
Parietal Pleura
Innermost lay of chest wall
Supplied by intercostal nerves
Fluid accumulates in
The costodiaphragmatic recess down low
Air accumulates in
The top
The trachea branches into the ____ at the ____ at the ____
The trachea branches into the Left and right main bronchus at the carina at the T4-T5 intervertebral disk
Different lobes and fissures of the lung
Left Lung:
Superior lobe (anterior)
Inferior lobe (posterior)
Oblique fissure
Right Lung: Superior Lobe (aterior) Inferior Lobe Middle Lobe Oblique and Horizontal fissures
What is in and surrounding the Pulmonary Hila
- Trachea (sometimes branch to sup lobe)
- Pulmonary artery
- Pulmonary Vein
- Lymph Nodes
- Brachial artery and vein
Surround by pleura (this forms the Pulmonary ligament)
Draw the two blood supply flow digrams
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Nervous Supply to the Lungs
Pulmonary plexus (vagus and sympathetics)
Intercostals (somatic, supply chest wall)
Phrenics (somatic, supply diaphragm)
Danger of a tumor in the lung
you cant feel it in the lung. Only when it gets big enough and touches the parietal pleura/chest wall.
Chest drains will drain ___ they are done ______.
To drain fluid, blood, air
Done in different places dependent on issue
- usually done w ultrasound guidance
What layers need to be anesthetised for a chest drain and what do you want to avoid.
Skin, fat, 3x IC muscles, parietal pleura.
Avoid visceral pleura and lung (pneomo thorax)
Where do you insert your chest drain
Above the rib to avoid NV bundle in costal groove.
In utero there were two extra channels. What are these and where are they now
Foramen Ovale (RA to LA) now ‘fossa ovalis’
Ductus arteriosus (Pulmonary trunk to aorta) now ‘ligamentum arteriosum’
