What is the major vein in the body?

What is the major vein in the body?

The two largest veins in the body are the superior vena cava, which carries blood from the upper body directly to the right atrium of the heart, and the inferior vena cava, which carries blood from the lower body directly to the right atrium. The inferior vena cava is labeled in the figure below.

What are the 4 main veins?

These are the ascending aorta, the pulmonary trunk, the pulmonary veins, the superior vena cava, and the inferior vena cava.

What are the two main veins?

Veins. The pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart. Systemic veins carry low-oxygen blood from the body to the right atrium of the heart.

What are the 3 main veins of the heart?

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).

Where is your main artery?

The largest artery is the aorta, the main high-pressure pipeline connected to the heart’s left ventricle. The aorta branches into a network of smaller arteries that extend throughout the body. The arteries’ smaller branches are called arterioles and capillaries.

What is the most important vein in the heart?

The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart.

Where do most cardiac veins drain?

Coronary veins

• cardiac veins which drain into the coronary sinus: great cardiac vein.
• the anterior cardiac veins which drain directly into the right atrium.
• the venae cordis minimae (smallest cardiac veins a.k.a. Thebesian veins) which drain directly into all four chambers, but are most frequent in the right atrium.

  Do veins carry blood away from the heart?

  The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues.

  What veins drain the heart?

  Venous Supply to the Heart. The great cardiac vein, the middle cardiac vein, and the small cardiac vein all drain into the coronary sinus (which opens into the right atrium). The anterior cardiac veins drain directly into the right atrium.