Arteries 4.1 pt 2

Two artery systems

Right and Left Coronary arteries

Supply oxygen to the heart tissue itself

Left coronary artery

left side of the heart

branches

• anterior inter-ventricular branch

• circumflex branch

Right coronary artery

right side of the heart

Branches

• marginal artery

• posterior inter-ventricular artery

inferior vena cava

blood flow from lower body

superior vena cava

blood flow from upper body

Brachiocephalic trunk

first branch off aorta

supplies blood to right arm and neck

Left common carotid

second branch off aortic arch

Right common carotid

branch off brachiocephalic trunk RCC

Left subclavian artery

third branch off aortic arch

Right subclavian artery

branch off brachiocephalic trunk RSA

Circle of willis

provides alternate circulation to the brain in case one of the arteries become blocked

Veterberal arteries

rise along the sides of the spinal cord

Internal carotid arteries

terminate in the left and right cerebral arteries

anterior cerebral arteries

branches off the middle cerebral arteries

Posterior communicating arteries

connects the internal carotid to the posterior cerebral artery

Anterior communicating arteries

connects anterior cerebral arteries