Blood Vessels

• Aorta
• Pulmonary Artery
• Superior Vena Cava
• Inferier Vena Cava

• Aorta
• Pulmonary Artery
• Pulmonary Vein
• Inferior Vena Cava

• Aorta
• Pulmonary Artery
• Pulmonary Vein
• Inferior Vena Cava

• Aorta
• Pulmonary Vein
• Superior Vena Cava
• Inferior Vena Cava

• Aorta
• Pulmonary Artery
• Superior Vena Cava
• Inferior Vena Cava

Carry blood away from heart; mostly oxygen-rich

• Arteries
• Veins
• Capillaries

Carry blood toward heart; mostly oxygen-poor

• Arteries
• Veins
• Capillaries

Thin-walled vessels that allow for the exchange of O_{2 ,} CO₂, nutrients and wastes between blood cells or air sacs in the lungs

• Arteries
• Veins
• Capillaries

Valves in veins

• make the use of a skeletal muscle pump unnecessary for venous blood flow
• are the leading cause of high blood pressure.
• cause venous blood flow to go in only one direction
• are formed of the tunica media

Blood leaves the right ventricle through the ___________.

• pulmonary artery
• aorta
• superior vena cava
• right atrium