What is vasculature of the heart?
The heart muscle, like every other organ or tissue in your body, needs oxygen-rich blood to survive. Blood is supplied to the heart by its own vascular system, called coronary circulation. The aorta (the main blood supplier to the body) branches off into two main coronary blood vessels (also called arteries).
What are the 4 major blood vessels connected to the heart?
The major blood vessels connected to your heart are the aorta, the superior vena cava, the inferior vena cava, the pulmonary artery (which takes oxygen-poor blood from the heart to the lungs where it is oxygenated), the pulmonary veins (which bring oxygen-rich blood from the lungs to the heart), and the coronary …
What are the 5 major coronary arteries?
Structure
- Left coronary artery (LCA) Left anterior descending artery. Left circumflex artery. Posterior descending artery. Ramus or intermediate artery.
- Right coronary artery (RCA) Right marginal artery. Posterior descending artery.
What are the 3 cardiac veins?
The major venous vessels of the human heart are: coronary sinus, the anterior interventricular veins, left marginal veins, posterior veins of the left ventricle, and the posterior interventricular veins (see also the Coronary System Tutorial).
What is a widow maker?
A widowmaker is an informal term for a heart attack that involves 100 percent blockage in the left anterior descending (LAD) artery, says Stanley Chetcuti, M.D., an interventional cardiologist at the University of Michigan Frankel Cardiovascular Center.
What artery supplies the posterior heart?
The right coronary artery supplies blood to the right ventricle and then supplies the underside (inferior wall) and backside (posterior wall) of the left ventricle.
What are the two main veins?
Your largest veins are the superior and inferior vena cava. Your superior vena cava carries blood from your upper body to the heart. Your inferior vena cava carries blood from everywhere below your heart. Like arteries, these two veins branch off into many other veins throughout your body.
What are the 4 chambers and 4 valves of the heart?
The heart has 4 chambers, 2 upper chambers (atria) and 2 lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart….The 4 heart valves are:
- Tricuspid valve. This valve is located between the right atrium and the right ventricle.
- Pulmonary valve.
- Mitral valve.
- Aortic valve.
What is the OM1 artery?
The first obtuse marginal artery (OM1) is usually found on or close to the obtuse margin of the heart and is also known as the “margo obtusus”.
What are the 3 main arteries in the body?
What Are the Major Arteries?
- The aorta. The largest artery in the body, which connects directly to the left ventricle of the heart.
- Arteries of the head and neck (carotids)
- Arteries of the torso (aortic subdivisions, coronaries and subclavian)
Where is the OM artery?
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.
What are the four main types of coronary veins?
The coronary veins return deoxygenated blood from the myocardium back to the right atrium….cardiac veins which drain into the coronary sinus:
- great cardiac vein.
- middle cardiac vein.
- small cardiac vein.
- posterior vein of the left ventricle.
- vein of Marshall (oblique vein of the left atrium)
What is the vasculature of the thorax?
In addition to the superior vena cava, the vasculature of the thorax also includes the aorta. The aorta is the largest artery in the body and acts as a conduit for blood to supply the rest of the body via the systemic circulation. The aorta consists of 4 major parts: the ascending aorta, the aortic arch, the thoracic aorta and the abdominal aorta.
What are the 3 segments of the thoracic aorta?
The thoracic aorta is conventionally described as consisting of three segments: the ascending aorta, aortic arch, and descending aorta. Conceptually, they may be regarded as the segmental supply to the heart; the head, neck, and upper limbs; and the thorax, respectively.
Where is the pulmonary artery located in the heart?
The main pulmonary artery and the subsequent right and left pulmonary arteries sit within the middle mediastinum. They arise from the right ventricle of the four-chambered heart and transport blood to the lungs.
What veins supply blood to the thoracic wall?
They are supplied by several arteries of the thoracic wall, namely branches of the internal thoracic, axillary, lateral thoracic, thoracoacromial, and posterior intercostal arteries. The axillary and internal thoracic veins are responsible for venous drainage, while nervous supply is carried out by branches from the intercostal nerves.
