Great vessels
Great vessels are the large arteries and veins that directly connect to the heart. They include the superior vena cava, inferior vena cava, pulmonary artery, pulmonary veins, and the aorta. The term "great vessels" is derived from the Latin vasa magna.
Etymology[edit | edit source]
The term "great vessels" is a direct translation of the Latin term vasa magna. The word vasa means "vessels" and magna means "great". This term is used to describe the large blood vessels that directly connect to the heart.
Structure[edit | edit source]
The great vessels consist of the following:
- Superior vena cava: This large vein carries deoxygenated blood from the upper half of the body to the heart's right atrium.
- Inferior vena cava: This is the largest vein in the human body. It carries deoxygenated blood from the lower half of the body to the heart's right atrium.
- Pulmonary artery: This artery carries deoxygenated blood from the right ventricle to the lungs for oxygenation.
- Pulmonary veins: These veins carry oxygenated blood from the lungs to the left atrium of the heart.
- Aorta: This is the main and largest artery in the human body, originating from the left ventricle of the heart and extending down to the abdomen.
Function[edit | edit source]
The great vessels are responsible for the transportation of blood to and from the heart. They play a crucial role in the circulatory system, allowing for the distribution of oxygenated blood to the body and the return of deoxygenated blood back to the heart.
Related terms[edit | edit source]
- Artery: A blood vessel that carries blood away from the heart.
- Vein: A blood vessel that carries blood towards the heart.
- Heart: The organ that pumps blood throughout the body.
- Circulatory system: The system that circulates blood and lymph through the body.
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