CV Anat

Left coronary artery

anterior interventricular artery and circumflex (left marginal arteries)

Right coronary artery

posterior interventricular artery and right marginal artery

coronary arteries

supply blood to myocardium from aorta when SL valves close

cardiac veins

return deoxygenated blood from myocardium to right atrium

three cardiac veins

great, middle, small

Running mates

great cardiac vein + anterior interventricular artery

middle cardiac vein + posterior interventricular artery

Three layers of blood vessels

tunica intima

tunica media

tunica adventitia/externa

capillaries

vessel of only tunica intima, connect arterioles and venules

three branches of aortic arch

brachiocephalic, left common carotid, left subclavian

braciocephalic trunk

splits into right subclavian and righ common carotid

arteries of the upper extremity

1. subclavian artery

2. axillary artery

3. brachial (deep brachial)

4. radial and ulnar

arteries to the brain

1. common carotid artery

2. external carotid artery

3. internal carotid artery → carotid canal → foramen lacerum → middle cranial fossa → anterior (frontal lobe) and middle (anterior parietal and temporal lobes) cerebral arteries

4. vertebral artery → transverse foramina → foramen magnum → basilar artery → posterior cranial fossa → right and left posterior cerebral arteries (posterior parietal and temporal lobes, occipital, and cerebellum)