The right coronary artery (RCA) originates above the right cusp of the aortic valve. It travels down the right atrioventricular groove, towards the crux of the heart.

At the origin of the RCA is the conus artery.
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The atrial branches of right coronary artery derive from the right coronary artery and provide part of the blood supply to the right atrium and left atrium.

Although named for the right coronary artery in terminologia anatomica, a portion of the blood supply to the atria
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The sinoatrial nodal artery is an artery of the heart which supplies the sinoatrial node, and usually arises from either the right coronary artery or (less frequently) the circumflex branch of left coronary artery.
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The right marginal branch of right coronary artery (or right marginal artery) is a large marginal branch which follows the acute margin of the heart and supplies branches to both surfaces of the right ventricle.
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The left coronary artery, abbreviated LCA and also known as the left main coronary artery (often abbreviated LMCA), arises from the aorta above the left cusp of the aortic valve.
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The "LCX", or left circumflex artery (or circumflex artery, or circumflex branch of the left coronary artery) is an artery of the heart.

Course

It follows the left part of the coronary sulcus, running first to the left and then to the right, reaching nearly
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The "LAD", or left anterior descending artery (or anterior interventricular branch of the left coronary artery, or anterior descending branch) is an artery of the heart.
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The left marginal artery (or obtuse marginal artery) is a branch of the circumflex artery, originating at the posterior interventricular sulcus, traveling along the left margin of heart towards the apex of the heart.
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The posterior interventricular artery (PIV) (or posterior descending artery(PDA)) is typically a branch of the right coronary artery (80%, known as right dominance) which runs in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior
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The atrioventricular nodal branch most frequently arises as an early branch from the right coronary artery, but occasionally the atrioventricular node receives blood from the circumflex branch of left coronary artery.
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The small cardiac vein (right coronary vein) runs in the coronary sulcus between the right atrium and ventricle, and opens into the right extremity of the coronary sinus.
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The anterior cardiac veins (or anterior veins of right ventricle), comprising three or four small vessels which collect blood from the front of the right ventricle and open into the right atrium; the right marginal vein frequently opens into the right atrium, and is
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The Great Cardiac Vein (left coronary vein) begins at the apex of the heart and ascends along the anterior longitudinal sulcus to the base of the ventricles.
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The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the myocardium of the heart. It is present in humans and other animals.
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Latin}}} 
Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the myocardium of the heart. It is present in humans and other animals.
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The posterior interventricular artery (PIV) (or posterior descending artery(PDA)) is typically a branch of the right coronary artery (80%, known as right dominance) which runs in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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heart is a muscular organ responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in the annelids, mollusks, and arthropods.
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posterior longitudinal sulcus (posterior interventricular sulcus, inferior interventricular groove), on the diaphragmatic surface near the right margin.

In it run the posterior interventricular artery and middle cardiac vein.
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The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the myocardium of the heart. It is present in humans and other animals.
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The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City.
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Public domain comprises the body of knowledge and innovation (especially creative works such as writing, art, music, and inventions) in relation to which no person or other legal entity can establish or maintain proprietary interests within a particular legal jurisdiction.
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Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened) is an English-language human anatomy textbook widely regarded as a classic work on the subject.
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vein is a blood vessel that carries blood toward the heart. The majority of veins in the body carry low-oxygen blood from the tissues back to the heart; the exceptions being the pulmonary and umbilical veins which both carry oxygenated blood.
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Superficial vein is a term used to describe a vein that is close to the surface of the body. It is used to differentiate veins that are close to the surface from veins that are far from the surface, known as deep veins.
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Deep vein is a term used to describe a vein that is deep in the body. It is used to differentiate deep veins from veins which are close to the surface, also known as superficial veins.

Deep veins are almost always beside an artery with the same name (e.g.
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Vena comitans is Latin for accompanying vein. It refers to a vein that is usually paired, with both veins lying on the sides of an artery. Because they are generally found in pairs, they are often referred to by their plural form: venae comitantes.
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The dural venous sinuses (also called dural sinuses, cerebral sinuses, or cranial sinuses) are venous channels found between layers of dura mater in the brain.
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The pulmonary veins carry oxygen-rich blood from the lungs to the left atrium of the heart. They are the only veins in the post-fetal human body that carry oxygenated (red) blood.

The pulmonary veins return the oxygenated blood from the lungs to the left atrium of the heart.
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