Lungs and pleurae

Question 1

Fissures of lungs

Answer 1

Right: transverse fissure 5th rib laterally to 4th costal cartilage anteriorly. oblique fissure from T3 to 6th rib anteriorly
Left: oblique fissure

Question 2

Pneumothorax what

Answer 2

Air enters pleural cavity->collapses lungs->shift other chest structures over to fill gap->shift heart position. Every breath increases pressure of lungs and compress heart decreasing cardiac function

Question 3

Bronchopulmonary segments

Answer 3

Right: upper-3 segmental bronchi, middle-2, lower-5
Left: 10/8 segments in total

Question 4

Lung root composition

Answer 4

Pleural reflection surrounding (top to bottom) bonchus, artery, vein

Question 5

Vessels articulating with lung

Answer 5

Right: vena cava, subclavianartery, oesophagus
Left: aorta, oesophagus, subclavian artery, brachiocephalic vein

Question 6

Bottom of right lung indication

Answer 6

10th rib posteriorly 8th rib laterally

Question 7

where pleura seperates

Answer 7

4th costal cartilage

Question 8

Lymphatic drainage

Answer 8

All lymph nodes go upwards ipsilateral for right lung but can be contralateral for left. Lymphatics follow bronchial tree and drain in veins. Inferior bronchial lymph node, intrapulmonary lymph node

Question 9

Innervation of lung

Answer 9

Parasympathetic (vagus nerve), phrenic nerve, sympathetic nerve originating T2-4