Cardio Anatomy

Question 1

What are the borders of the Mediastinum?

Answer 1

Laterally by the pleural cavity of the lungs
Supperiorly by thoracic index and inferiorly by the diaphragm

Question 2

What is the level of the plane of Louis

Answer 2

From sternal angle to T4

Question 3

Why is the plane of sternal angle a thoracic landmark?

Answer 3

-Separates superior from inferior mediastinum.
-Marks the beginning and end of the aortic arch.
-Marks the birfurcation of the trachea.
-identifies superior border of the pericardium.
makrs ending of aorta.
-Arch of Azygous vein.

Question 4

What are the borders of the superior mediastinum?

Answer 4

Superiorly by thoracic inlet
Inferiorly by plane of loius
Anteriorly by the manubrium
Posteriorly by T4/T5
Laterally by pleura of lungs

Question 5

What are The great vessels? Aorta, veins and nerves?

Answer 5

Aortic Arch divides into-
1).brachiocephallic artery - into right common and carotid
2).Left Common Carotid
3). Left Subclavian Artery.
Veins:
1).Brachiocephalic vein
2).Left Superior Intercostal
3).Supreme Intercostal vein
4). Azygous vein
Nerves
1).Right and Left Vegus nerve
2). Left Recurrent Laryngeal
3). Phrenic

Question 6

What are some other structures?

Answer 6

1). Thymus
2).Thoracic Inlet-Oesophagus, trachea, vagus nerve, thoracic duct, major blood vessels

Question 7

What are the contents of the Middle Mediastinum?

Answer 7

1). Pericardium
2). Heart and Bifurcation if heart
3). Roots of Great vessels
4).. Roots of lungs
5). Phrenic nerves.
6).Deep part of cardiac plexus