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Arteries and veins, the body's major vessels

Long branching vessels over a body, each left-and-right pair one region with two outlines.

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Aorta

The body's largest artery. It leaves the heart, arches over it, and runs down the back of the chest and abdomen, dividing into the two common iliac arteries at about the level of the navel.

Carries
Oxygen-rich blood
Begins at
The left ventricle

Carotid arteries

Run up each side of the neck to supply the head and brain. The pulse in the neck is felt over them.

Supply
Head and brain
Pulse point
The side of the neck

Subclavian arteries

Run beneath the collarbones and out to each arm.

Supply
The arms
Continue as
Axillary, then brachial arteries

Brachial arteries

The main artery of the upper arm. A blood-pressure cuff listens to it at the inside of the elbow.

Runs along
The inside of the upper arm
Pulse point
Inside the elbow

Radial arteries

Run down the thumb side of each forearm. The pulse is usually taken over the radial artery at the wrist.

Runs along
The thumb side of the forearm
Pulse point
The wrist

Renal arteries

Short, wide arteries carrying blood to the kidneys, which filter it.

Supply: The kidneys

Common iliac arteries

The aorta's two final branches, supplying the pelvis and the legs.

Branch from
The aorta
Supply
Pelvis and legs

Femoral arteries

The main artery of each thigh. A pulse can be felt in the groin.

Supply
The thigh and leg
Pulse point
The groin

Tibial arteries

Continue from the artery behind the knee to supply the lower leg and the foot.

Supply
Lower leg and foot
Pulse point
Behind the inner ankle

Superior vena cava

Returns blood from the head, neck and arms to the heart.

Carries
Oxygen-poor blood
Empties into
The right atrium

Inferior vena cava

Returns blood from the lower body to the heart. It is the largest vein in the body.

Carries
Oxygen-poor blood
Empties into
The right atrium

Jugular veins

Drain blood from the head and neck, running down each side of the neck.

Drain: Head and neck

Subclavian veins

Return blood from each arm and join the jugular veins on their way to the heart.

Drain: The arms

Basilic veins

Run up the inner side of each arm. The veins at the inside of the elbow are where blood is usually drawn.

Drain
Hand and arm
Lies
Just under the skin

Renal veins

Return filtered blood from the kidneys to the inferior vena cava.

Drain: The kidneys

Common iliac veins

Return blood from the legs and pelvis, and join to form the inferior vena cava.

Join to form: The inferior vena cava

Femoral veins

Run alongside the femoral arteries, returning blood from the thighs and legs.

Drain: The thigh and leg

Great saphenous veins

Run up the inside of each leg, from the foot to the groin, just under the skin. They are the longest veins in the body.

Runs
From foot to groin
Known for
The body's longest veins

Heart

The pump at the centre of it all: the right side sends blood to the lungs, the left side to the rest of the body.

Chambers
Four
Pumps
Both circuits at once