The Heart

Why does the heart rate increase during stress or physical activity?

• To conserve energy for muscles

• To reduce blood pressure

• To reduce blood pressure

• To circulate blood faster and meet oxygen demands

Which vessel carries oxygenated (oxygen rich) blood away from the heart and to the rest of the body?

• Pulmonary Artery

• Aorta

• Vena Cava

• Pulmonary Vein

Which blood vessels carry blood away from the heart?

• Veins

• Arteries

• Capillaries

• Vena cava

Label the heart chambers

a

b

c

d

Right Atrium

Right Ventricle

Left Atrium

Left Ventricle

Which side of the heart pumps blood to the rest of the body?

• Left side

• Right side

Deoxygenated (oxygen-poor) blood enters the heart from the body through which chamber

• Left Ventricle

• Right Atrium

• Left Atrium

• Right Ventricle