Aorta

Aorta consist:

• Ascending part
• Arch (arcus aorta)
• Descending Part

Ascending part

1. Ascending part of aorta form aorta bulb (bulbus aorta) at the level 3rd intercostal level.
2. At the level of bulbus aorta, right and left coronary artery separate.

Aorta Arch

1. Arcus aorta form at the level right 2nd rib
2. Give rise to:

• Brachiocephalic trunk
• Common left Carotid artery.
• Left Subclavian artery

Descending part

Divided into:

1. Thoracic part
2. Abdonimal part