What does the obtuse marginal artery do?

The obtuse marginal artery (OMA) is one or two branches from the left circumflex branch(LCx) of the left main coronary artery (LMCA). It supplies the most lateral wall of the left ventricle.

Why are the little vessels on the heart the coronary arteries so very important?

The importance of the coronary arteries Because the heart needs oxygen to function properly, the coronary arteries play a vital part in heart health. If they are diseased or damaged, they can reduce blood to the heart, which can lead to heart attack.

Why is it called obtuse marginal artery?

Marginal arteries are three longest branches off of the circumflex artery supplying the lateral wall of the left ventricle, unless there is a large branching vessel which dominates the lateral left ventricular wall. When a large dominating artery is present, it is called an obtuse marginal.

What is the purpose of vessels in the heart?

The heart’s role is to pump oxygen-rich blood to every cell in the body. The blood vessels — a network of interconnecting arteries, arterioles, capillaries, venules, and veins — provide the pathway in which blood travels.

What is the obtuse margin of heart?

left border
Anatomical terminology The left border of heart (or left margin, or obtuse margin) is shorter than the right border, full, and rounded: it is formed mainly by the left ventricle, but to a slight extent, above, by the left atrium. It extends from a point in the second left intercostal space, about 2.5 mm.

What do the marginal arteries supply?

The marginal branch of the right coronary artery provides blood supply to the lateral portion of the right ventricle. The posterior descending artery branch supplies blood to the inferior aspect of the heart. The LMCA supplies blood to the left side of the heart.

Why are capillaries so important?

Capillaries are very tiny blood vessels — so small that a single red blood cell can barely fit through them. They help to connect your arteries and veins in addition to facilitating the exchange of certain elements between your blood and tissues.

What are the vessels that supply the heart?

The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood.

What is blood vessels and its function?

Blood vessels circulate blood throughout your body. They help deliver oxygen to vital organs and tissues, and also remove waste products. Blood vessels include veins, arteries and capillaries.

Why is it important for the blood vessels to form a circuit?

Systemic Circuit It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.

What is an obtuse marginal branch?

The obtuse marginal (OM) arteries sometimes referred to as lateral branches are branch coronary arteries that come off the circumflex artery. There can be one or more obtuse marginal arteries. It typically traverses along the left margin of heart towards the apex.