1. Draw lines to match the components of blood to their functions.
- red blood cell → carry oxygen
- platelets → causes the blood to clot to prevent loss
- white blood cell → fight invading pathogens
- plasma → medium in which substances float or dissolve
2. Fill in the gaps in the passage below.
The circulatory system transports substances around the body.
Blood vessels called arteries have thick muscular walls and transport blood away from the heart to other tissues and organs.
Blood is taken from tissues to the heart by blood vessels called veins, which have larger lumens and thin walls.
Capillaries are small vessels which exchange materials with tissues.
3. a) Label the diagram below.
- Superior vena cava
- Pulmonary artery
- Aorta
- Pulmonary vein
- Right atrium
- Right ventricle
- Left atrium
- Left ventricle
- Tricuspid valve
- Bicuspid valve
- Semilunar valve
Parent Tip: Review the logic above to help your child master the concept of circulation worksheet.
