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  2. Coronary arteries - Wikipedia

    en.wikipedia.org/wiki/Coronary_arteries

    The right marginal arteries perfuse the right ventricle and the posterior descending artery perfuses the left ventricular posterior and inferior walls. There is also the conus artery , which is only present in about 45 percent of the human population, and which provides collateral blood flow to the heart when the left anterior descending artery ...

  3. Right coronary artery - Wikipedia

    en.wikipedia.org/wiki/Right_coronary_artery

    The RCA also supplies the SA nodal artery in 60% of people. The other 40% of the time, the SA nodal artery is supplied by the left circumflex artery. [citation needed] Although rare, several anomalous courses of the right coronary artery have been described including origin from the left aortic sinus. [9]

  4. Can shoulder pain be a sign of a heart attack? Here's what ...

    www.aol.com/shoulder-pain-sign-heart-attack...

    Heart disease remains the number one cause of death in the U.S. And looking for warning signs, including shoulder pain, can make a big difference.

  5. Coronary circulation - Wikipedia

    en.wikipedia.org/wiki/Coronary_circulation

    The right coronary artery proceeds along the coronary sulcus and distributes blood to the right atrium, portions of both ventricles, and the heart conduction system. Normally, one or more marginal arteries arise from the right coronary artery inferior to the right atrium. The marginal arteries supply blood to the superficial portions of the ...

  6. Clogged Arteries Can Play a Significant Role in Severe Heart ...

    www.aol.com/clogged-arteries-play-significant...

    Those symptoms can also come as a result of a coronary artery spasm, which occurs when an artery in the heart squeezes shut. Clogged arteries can cause those events, as well. 4.

  7. Angina - Wikipedia

    en.wikipedia.org/wiki/Angina

    Atherosclerosis is the most common cause of stenosis (narrowing of the blood vessels) of the heart's arteries and, hence, angina pectoris. Some people with chest pain have normal or minimal narrowing of heart arteries; in these patients, vasospasm is a more likely cause for the pain, sometimes in the context of Prinzmetal's angina and syndrome X.

  8. Moral Injury - The Huffington Post

    projects.huffingtonpost.com/moral-injury

    This series came from a determination to understand why, and to explore how their way back from war can be smoothed. Moral injury is a relatively new concept that seems to describe what many feel: a sense that their fundamental understanding of right and wrong has been violated, and the grief, numbness or guilt that often ensues.

  9. Anatomy of the human heart - Wikipedia

    en.wikipedia.org/wiki/Anatomy_of_the_human_heart

    The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...