aorta

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Cross-sectional illustration of the human heart showing labeled internal chambers and major vessels, including the right and left atria, right and left ventricles, aorta, pulmonary trunk, and vena cava.

X-ray image of coronary artery circulation

Illustration of a human heart in cross section, showing labeled chambers, valves, and major blood vessels including the aorta, pulmonary trunk, vena cavae, atria, and ventricles.

Diagram of the human circulatory system showing major arteries in red and veins in blue, with labeled pathways for arterial supply and venous drainage to organs including the heart, lungs, liver, kidneys, intestines, and lower limbs.

Diagram of the female renal system showing kidneys, adrenal glands, and urinary tract organs in their anatomical positions, with labels for major structures including blood vessels, bladder, and uterus.

Illustration of a human heart cross-section showing four chambers-left and right atria and ventricles-with labeled major blood vessels. An inset highlights cardiac muscle tissue, showing myocytes and intercalated disks.

aorta: Media

anatomy

Images

Cross-sectional illustration of the human heart showing labeled internal chambers and major vessels, including the right and left atria, right and left ventricles, aorta, pulmonary trunk, and vena cava.

The aorta and other major vessels of the human heart

In humans, the aorta is the largest artery, carrying oxygen-rich blood from the heart...

Encyclopædia Britannica, Inc.

X-ray image of coronary artery circulation

X-ray image of coronary artery circulation

Figure 13: A synchrotron X-ray image of the coronary artery circulation of a human...

Edward Rubenstein, Stanford University School of Medicine

Illustration of a human heart in cross section, showing labeled chambers, valves, and major blood vessels including the aorta, pulmonary trunk, vena cavae, atria, and ventricles.

The human heart

The four chambers of the human heart shown in cross section.

Encyclopædia Britannica, Inc.

Diagram of the human circulatory system showing major arteries in red and veins in blue, with labeled pathways for arterial supply and venous drainage to organs including the heart, lungs, liver, kidneys, intestines, and lower limbs.

Human circulatory system

Parts of the human circulatory system that highlight arterial supply and venous drainage...

Encyclopædia Britannica, Inc.

Diagram of the female renal system showing kidneys, adrenal glands, and urinary tract organs in their anatomical positions, with labels for major structures including blood vessels, bladder, and uterus.

female kidneys in situ; human renal system

Female kidneys in situ.

Encyclopædia Britannica, Inc.

Illustration of a human heart cross-section showing four chambers-left and right atria and ventricles-with labeled major blood vessels. An inset highlights cardiac muscle tissue, showing myocytes and intercalated disks.

Human heart

The human heart is both a pump and a muscle. Its four chambers move blood efficiently,...

Encyclopædia Britannica, Inc.

Interactives

The Human Body

The Human Body

Experience the major systems of the human body.

Encyclopædia Britannica, Inc.

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