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Circulation of blood. 1: Capillaries of lungs; 2: Capillaries of system.

Circulation

Circulation of blood. 1: Capillaries of lungs; 2: Capillaries of system.

1: Left ventricle of the heart. 2 and 3: Aorta. 5: Arteries that extend to the lower extremities. 6: Arteries of the neck. 7: Arteries of the arms.

Circulatory

1: Left ventricle of the heart. 2 and 3: Aorta. 5: Arteries that extend to the lower extremities. 6:…

1: Right auricle of the heart. 2 and 3: Large veins that open into the right auricle. 4: Veins of the lower extremities. 5: Veins of the arms. 6: Veins of the neck.

Circulatory

1: Right auricle of the heart. 2 and 3: Large veins that open into the right auricle. 4: Veins of the…

Veins of the arm

Arm Veins

Veins of the arm