Common Left Carotid Artery

Common left Carotid Artery

1. Supply blood to neck and head.

2. Origin

• 1st, it go behind and lateral of external Carotid artery. Later, it rise medially to external carotid artery.
• Rises up between pharynx and internal jugular vein.
• At cervical part, sympathetic trunk and vagus pass medially.
• Lateral to it, located hypoglossal nerve. More upper, located Glossopharengeal nerve.
• Passes carotid canal of temporal bone pyramid.

3. Anastomoses of internal carotid artery

: posterior communicationg artery with posterior cerebral artery

4. Divided into:

1. External Carotid artery
2. Internal Carotid artery