Thoracic arteries

Thoracic arteries are the blood vessels responsible for the transportation of oxygenated blood to the thoracic cavity, including the heart and lungs. The main thoracic arteries are the aorta, the pulmonary artery, and the coronary arteries.

Etymology

The term "thoracic" comes from the Greek word "thorax", meaning "chest". The term "artery" comes from the Greek word "arteria", meaning "windpipe", which was originally used to describe all three types of blood vessels (arteries, veins, and capillaries).

Types of Thoracic Arteries

There are several types of thoracic arteries, each with its own specific function and location within the thoracic cavity.

Aorta

The aorta is the largest artery in the body. It originates from the left ventricle of the heart and extends down to the abdomen. The aorta is responsible for carrying oxygenated blood from the heart to the rest of the body.

Pulmonary Artery

The pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.

Coronary Arteries

The coronary arteries are the main blood vessels that supply the heart muscle with oxygenated blood. They originate from the aorta near the point where it leaves the heart.

Related Terms

• Artery: A blood vessel that carries blood away from the heart to the rest of the body.
• Vein: A blood vessel that carries blood towards the heart.
• Capillary: The smallest type of blood vessel, where the exchange of oxygen and nutrients for waste products of metabolism occurs.
• Thoracic cavity: The chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia).

See Also

• Cardiovascular system
• Circulatory system
• Heart
• Lung