Brachiocepahlic Artery (Innominate Artery )
- Origin and course
- The first of the branch from aortic arch is the
brachiocephalic (innominate
artery)
- Longest branch of the arch ( 4-5 cm
long).
- It courses in midline in front of trachea
- It ends by dividing into the
right common carotid artery and right subclavian artery at the upper
border of right sternoclavicular junction.
- Usually devoid of
branches.
- Branches
- Usually devoid of
branches.
- Terminates by dividing into right common carotid
and right subclavian
- Relationship
- Trachea is posterior
- Left Brachiocephalic vein and Thymus are anterior
- SVC, Right brachiocephalic vein and pleura
are to the right
- Left common carotid artery and Thymus are to left
- Supplies
- Right side of the head and brain
- Right upper extremity