Cambridge Primary Science 6 Learners Book 2nd Edition 2021 PDF

1.1 The circulatory system Getting started The parts inside your body are called organs. The body organs do different jobs to keep you alive and healthy. Discuss these questions with a partner. Be prepared to share your ideas with the class. 1 Which organ is found in the head? 2 W...

1.1 The circulatory system Getting started The parts inside your body are called organs. The body organs do different jobs to keep you alive and healthy. Discuss these questions with a partner. Be prepared to share your ideas with the class. 1 Which organ is found in the head? 2 Which organs are found in the chest? 3 Which organ pumps blood around the body? 4 Name two organs in the digestive system. Parts of the circulatory system The circulatory system carries food and oxygen to all parts of your body. It also carries waste substances that your body does not need. The circulatory system has three main parts: the heart blood vessels blood. to body blood The heart carrying oxygen Put your hand on your chest. Can you feel your to lungs heart beating? Why does your heart beat? Make a fist with your hand. That’s how big your heart is. Your heart is found inside your from lungs chest, slightly to the left. It is protected by the ribs. Your heart is a special muscle. Its job is to pump blood through your body. This process is called circulation. Every time the heart blood muscle contracts to pump blood, you can without oxygen feel a heartbeat. It takes less than a minute to pump blood to every part of your body. The heart does this all the time and never stops. from body 3