Anatomy of Mediastinum Flashcards
How is Mediastinum divided into Superior mediastinum & Inferior mediastinum?
By transverse thoracic plane.
Name the 2 key points through which transverse thoracic plane passes.
- The sternal angle
- T4-T5 vertebra junction
Name the four boundaries of superior mediastinum.
Superior thoracic apperture (superior)
Transverse thoracic plane (inferior)
Sternum (anterior)
T1-T4 vertebral bodies (posterior)
Name vascular contents of Superior Mediastinum.
- Aortic arch and its branches
- Superior vena cava and its tributaries
Fill in the blank.
______ arches over root of the right lung (at level T4) to empty into Superior Vena Cava.
Azygos vein
Name 3 branches of the aortic arch.
- Brachiocephalic trunk
- Left common carotid artery
- Left subclavian artery
Where does Abdominal aorta starts and ends?
Origin: T12 (aortic hiatus)
Termination: L4
Where does Thoracic aorta starts and ends?
Origin: Sternal angle
Termination: T12 (aortic hiatus)
Name the 6 paired arteries that branches from abdominal aorta.
SupraGIRLS.
- Suprarenal
- Gonadal
- Inferior phrenic
- Renal
- Lumbar
- Subcostal
Name the 3 tributaries of Superior Vena Cava.
- Right bachiocephalic vein
- Left brachiocephalic vein
- Azygos vein
True/False
Inferior Vena Cava has no valves.
True
True/False
The right lymphatic duct drains fluid from the upper right side of the body.
True
Name the 2 ducts in Lymphatic system.
- Right lymphatic duct
- Thoracic duct
What are the 3 functions of lymphatic system.
- Drainage of surplus fluid to prevent swelling
- Immune defense - by transporting immune cells & bringing them to site of infection
- Absorption and Transport of lipids
Where does Inferior Vena Cava starts and ends?
Origin: L5 vertebra level (where left and right iliac veins join)
Termination: Right atrium (T8)
