Blood moves to fast through the heart for the blood to nourish the heart. The heart is always pumping from before you are born till you die thus using a lot of nutrients and oxygen. Therefore once blood leaves the heart and enters the ascending aorta it branches off and supplies the heart with blood to give oxygen and nutrients and take away carbon dioxide and waste products. Arteries leaving the aorta are the Right Coronary artery which branches into the Right Marginal artery and the Posterior Interventricular artery (which goes around to the posterior of the heart from the bottom.
The other branch is the Left Coronary artery which branches into the Anterior Interventricular artery and the Circumflex artery.Blood is returned to the heart with three viens. The Great Cardiac vein which is beside the Anterior Interventricular artery. The Middle Cardiac vein which is beside the Posterior Interventricular vein. And finally the Lesser Cardiac vein which is beside the marginal artery. These three veins all dump into the Coronary Sinus which drains into the heart.
No comments:
Post a Comment