How is the heart muscle supplied with oxygen? Anatomy & Physiology Circulatory and Respiratory Systems Circulatory System 1 Answer Siddharth B. Feb 2, 2016 Through the coronary portal system. Answer link Related questions Why does the narrowing of the arteries decrease blood flow but increase blood pressure? People who smoke often have cold hands and feet. What might explain this condition in terms of... Is the vertebral artery a branch of the aortic arch? What conditions contribute to elevated blood levels of alkaline phosphatase? Are lymphocytes produced in the bone marrow and then migrate to the thymus gland and lymph nodes... What is heart disease? What is the primary cause of heart disease and what symptoms does it... How does blood flow back to the heart from the lower extremities, since it is fighting against gravity? In a heart transplant, if the vagus nerve is not re-transplanted, how is the heart rate kept in check? Is heart disease hereditary? Can a person who subscribes to a very healthy lifestyle suffer a... What is the difference between congestive heart failure and coronary artery disease? See all questions in Circulatory System Impact of this question 2597 views around the world You can reuse this answer Creative Commons License