Circulatory system

What is the function of the circulatory system?

• Change food into nutrients in the digestive system.

• Take air and release oxygen into the blood.

• Hold the body up.

• Moves substances (oxygen, nutrients, carbon dioxide, waste substances) around our body.

The circulatory system is made up of:

• Cartilage, bones and tendons.

• Blood, blood vessels and the heart.

• Larynx, nostrils, lungs.

• Brain, central nervous system, neurons.

Read and complete.

__________________ ( arteries / veins / capillaries) take blood from the heart to rest of the body.

Blood is a red liquid made up of:

• Red blood cells.

• White blood cells.

• Platelets.

• All of the above

• Non of the above

What happen if the heart doesn´t contract?

• It can´t fill with blood that reaches it throug the veins.

• It can´t push blood out through the arteries to the rest of the body.

Who is in charge of taking blood from the rest of the body to the heart?

• Veins

• Arteries

• Capillaries

The movement of blood through the heart and body is called:

• Heartbeat

• Locomotion

• Circulation

• Respiration