Circulatory System I

What is not part of the circulatory system?

• Lungs

• Heart

• Veins

• Blood

• Arteries

Arteries...

• carries oxygenated blood to the heart and body

• carries deoxygenated blood

• carries oxygen-carrying blood away from the heart and body

• arteries are the same as veins

Choose the correct answer.

Veins are

• thick-walled and muscular

• have valves to stop back flow

• the smallest blood vessels in the body

• connected to the brain

Select the components of blood

• plasma

• red blood cell

• white blood cells

• platelets

Deoxygenated blood travels along the vena cava and enters what part of the heart?

• Right atrium

• Right ventricle

• Left Ventricle

• Pulmonary vein

Pulmonary arteries take blood to the

• heart

• lungs

• body

• brain

Pulmonary veins take blood to the

• heart

• body

• lungs

• leg

Blood entering the heart from the vena cava goes into the left atrium

• true

• false

Oxygenated blood travels from the left ventrical to the rest of the body through the

• aorta

• pulmonary artery

• pulmonary vein

• vena cava

The roll of capillaries in the circulatory system is

• to deliver blood to the cells

• to carry oxygenated blood

• to diffuse blood across membranes

• carry deoxygenated blood