Circulatory System & Heart

Question 1

Red blood cell

Answer 1

RED VELVET DONUT
- carry oxygen, nutrients and other materials to and from tissues
- contain a protein called haemoglobin; normally 4 irons and 4HG/Fe

Question 2

White blood cell

Answer 2

PACMAN
- defend the body against bacteria, disease craving organisms and other invaders
- antibody makers

Question 3

Platelet

Answer 3

HEALERS
- formation of blood clots/scabs
- prevent excess bleeding; patch up wounds

Question 4

Plasma

Answer 4

CYTOPLASM OF BLOOD
- liquid portion of blood
- helps carry the blood cells along

Question 5

Blood pressure

Answer 5

• pressure of blood pushing against the walls of arteries

Question 6

Artery

Answer 6

OXYGEN-RICH
- carry oxygen-rich blood AWAY from the heart to the body tissues
- thick-walled vessels (withstands pressure)

Question 7

Vein

Answer 7

OXYGEN-POOR
- carry oxygen-poor blood from the body tissues BACK TO the heart
- have valves to prevent backflow
- thinner-walled vessels

Question 8

Capillary vein

Answer 8

SMALLEST VESSEL
- 1 cell thick
- thin walls
- gases, nutrients, and waste pass through easily during DIFFUSION

Question 9

Vena cava

Answer 9

• large veins that bring blood to the heart
  SUPERIOR - head and arms
  INFERIOR - abdomen and legs

Question 10

Right atrium

Answer 10

DEOXYGENATED
- receives oxygen-poor blood from body
- pumps it to the right ventricle

Question 11

Left atrium

Answer 11

OXYGENATED
- receives oxygen-rich blood from the lungs
- pumps it to the left ventricle

Question 12

Right ventricle

Answer 12

DEOXYGENATED
- pumps oxygen-poor blood to lungs

Question 13

Left ventricle

Answer 13

OXYGENATED
- pumps oxygen-rich blood to the body

Question 14

Pulmonary artery

Answer 14

DEOXYGENATED
- carries oxygen-poor blood to the lungs

Question 15

Pulmonary vein

Answer 15

OXYGENATED
- carries oxygen-rich blood from lungs back to the heart

Question 16

Aorta

Answer 16

OXYGENATED
- carries blood away from heart and to the rest of the body