Circulatory System

Question 1

What is pulmonary circulation?

Answer 1

Oxygen depleted blood carried away from the heart to lungs and returns oxygenated blood to the heart.

Question 2

What is systemic circulation?

Answer 2

Carries oxygenated blood away from the heart to the rest of the body and returns deoxygenated blood.

Question 3

Vena cava

Answer 3

A large vein carrying deoxygenated blood into the heart.

Question 4

Right Atrium

Answer 4

Hear chamber that collects blood returning from the the body

Question 5

Left Atrium

Answer 5

Heart chamber that collects blood returning from the lungs

Question 6

Right Ventricle

Answer 6

Heart chamber that pumps deoxygenated blood to the lungs

Question 7

Left Ventricle

Answer 7

Heart chamber that pumps oxygenated blood around the body.

Question 8

Pulmonary vein

Answer 8

A vein carrying oxygenated blood from the lungs to the left atrium of the heart.

Question 9

Aorta

Answer 9

supplies oxygenated blood to the circulatory system.It passes over the heart from the left ventricle.

Question 10

Red blood cells

Answer 10

Carry oxygen and iron. They have no nucleus.

Question 11

White blood cells

Answer 11

Defends against disease, make antibodies and antitoxins.

Question 12

Plasma

Answer 12

Pale liquid that carries all the other parts of the blood, nutrients, co2, waste, hormones and antibodies.

Question 13

Platelets

Answer 13

Have no nucleus, help clot bleeding

Question 14

Arteries

Answer 14

• Carry oxygenated blood away from the heart
• Leaves the heart at high pressure, so the walls are thick
• Narrower tube space (lumen)

Question 15

Capillaries

Answer 15

• Diffuse food and oxygen to body tissues
• Take CO2 and waste away from body tissues
• Are very small (one cell thick)

Question 16

Veins

Answer 16

• Take blood back to the heart (low pressure)
• Has valves to keep the blood flowing in the right direction
• Larger tube space (lumen) to carry the blood
• Blood has lower pressure so the walls are thinner