6a- Lymphatic Drainage Of The Lungs

Question 1

3 associated lymph nodes of chest wall

Answer 1

internal thoracic arteries (parasternal)
–ribs (intercostal)
–diaphragm (diaphragmatic)

Question 2

Where do theses 3 types of nodes drain into

Answer 2

Parasternal
–Bronchomediastinal trunks
•Intercostal (upper)
–Bronchomediastinal trunks
•Intercostal (lower)
–Thoracic duct
•Diaphragmattic
–Brachiocephalic
–Aortic/lumbar
•Superficial

Question 3

Where does thoracic duct begin

Answer 3

Begins at the cisterna chyli
–drains abdomen, pelvis, perineum and lower limbs
•Begins at L2 vertebral level

Question 4

What are the nodes that drain the lungs

Answer 4

Tracheobronchial
–Around bronchi and trachea
–From within lung through hilum
–Unite with vessels from parasternal and brachiocephalic nodes anterior to brachiocephalic veins to form:
•Bronchomediastinal