Cardiovascular system L2

Describe the cardiovascular system.

• The system that gives us energy

• The system that delivers blood to the rest of the body

• The system that removes waste products

• The system that provides us with a healthy digestion

Name one function of the blood

Answer explanation

Transportation

Protection

Clotting

The component of blood is......

• Plasma, (erythrocytes) red blood cells, (leucocytes) white blood cells, (thrombocytes) platelets

• Plasma, blood cells, toxins, water

• Plasma, (erythrocytes) red blood cells, (leucocytes) white blood cells

• Water, plasma, cells

Answer explanation

What does blood plasma contain?

• Water, o2, Co2, waste.

• Toxins, nutrients, gases and waste.

• Toxins, minerals, salts, nutrients, waste and water.

• Toxins, minerals, salts, nutrients, waste, hormones, gases and food.

What colour is blood plasma?

• Pink.

• Straw coloured.

• Red.

• White.

Which description describes a capillary?

• Thinner than arteries and contain valves that prevent backflow.

• Tiny blood vessels that have a small lumen.

• Microscopic blood vessel with a single layer of cells, semi permeable walls that allow gases to exchange.

The function of an artery is to...

• Pass deoxygenated blood from venules to the heart.

• Collect blood from the capillaries and drain into veins.

• Carry oxygenated blood away from the heart.

• Form a network around all cells.

Which answer describes the structure of a vein?

• Thicker walls with a small lumen.

• Thinner walls that contain valves to prevent back flow of blood. Lumen is large.

• Thinner walls that contain valves to prevent back flow of blood. Lumen is small.

• Pass blood to capillaries.