Presentation is loading. Please wait.

Presentation is loading. Please wait.

Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy The Heart and Lungs Unit 5a: Keeping Healthy Unit.

Similar presentations


Presentation on theme: "Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy The Heart and Lungs Unit 5a: Keeping Healthy Unit."— Presentation transcript:

1

2 Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy The Heart and Lungs Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy The Heart and Lungs Key Stage 2: Year 5 Science by Mrs. Chapman, 2005 Greet School, Birmingham Key Stage 2: Year 5 Science by Mrs. Chapman, 2005 Greet School, Birmingham

3 Introduction 1The human body The human bodyThe human body 2What does the heart do? What does the heart do?What does the heart do? 3Heart key facts Heart key factsHeart key facts 4Heart health Heart healthHeart health 5What do the lungs do? What do the lungs do?What do the lungs do? 6Lungs key facts Lungs key factsLungs key facts 7The circulation The circulationThe circulation 8Pulse and exercise Pulse and exercisePulse and exercise 9Pulse rate data Pulse rate dataPulse rate data 10How do I look after them? How do I look after them?How do I look after them? Heart and lungs quiz Heart and lungs quiz Links for further study Links for further study 1The human body The human bodyThe human body 2What does the heart do? What does the heart do?What does the heart do? 3Heart key facts Heart key factsHeart key facts 4Heart health Heart healthHeart health 5What do the lungs do? What do the lungs do?What do the lungs do? 6Lungs key facts Lungs key factsLungs key facts 7The circulation The circulationThe circulation 8Pulse and exercise Pulse and exercisePulse and exercise 9Pulse rate data Pulse rate dataPulse rate data 10How do I look after them? How do I look after them?How do I look after them? Heart and lungs quiz Heart and lungs quiz Links for further study Links for further study Unit 5a Keeping Healthy: The Heart and Lungs Year 5 Science by Mrs. Chapman

4 The human body Your body is very special. We need to look after our bodies to stay healthy. Although we may look still and quiet on the outside, our body is constantly moving and changing inside. Can you find the brain, the heart and the lungs? Your body is very special. We need to look after our bodies to stay healthy. Although we may look still and quiet on the outside, our body is constantly moving and changing inside. Can you find the brain, the heart and the lungs? Back to Introduction Back to Introduction Back to Introduction Back to Introduction

5 What does the heart do? Your heart, made of muscle, pumps blood around your body via blood vessels (tubes). The heart is inside your chest, protected by bones - the ribs and breast bone. When the heart pumps, it beats - we measure the heartbeat via the pulse - easily found on your wrist and neck. Blood carries oxygen to the parts of the body that need it. Your heart, made of muscle, pumps blood around your body via blood vessels (tubes). The heart is inside your chest, protected by bones - the ribs and breast bone. When the heart pumps, it beats - we measure the heartbeat via the pulse - easily found on your wrist and neck. Blood carries oxygen to the parts of the body that need it. Back to Introduction Back to Introduction Back to Introduction Back to Introduction

6 Heart key facts Your heart is about the size of your fist. In most adults it beats about 70 times a minute (70 bpm). In children and small animals, the heart beats faster. The first heart transplant was in 1967. You cannot normally live for more than 5 minutes if your heart stops beating. Heart disease is the number 1 killer in the western world! Doctors examine your heart by taking the pulse (to see how fast its beating), ECGs (special electrical rhythm charts), x-rays and scans including ultrasound (like an unborn baby scan). Your heart is about the size of your fist. In most adults it beats about 70 times a minute (70 bpm). In children and small animals, the heart beats faster. The first heart transplant was in 1967. You cannot normally live for more than 5 minutes if your heart stops beating. Heart disease is the number 1 killer in the western world! Doctors examine your heart by taking the pulse (to see how fast its beating), ECGs (special electrical rhythm charts), x-rays and scans including ultrasound (like an unborn baby scan). Back to Introduction Back to Introduction Back to Introduction Back to Introduction

7 Heart health Man having a chest x-ray Heart on chest x-ray ECG graph output Ultrasound output Back to Introduction Back to Introduction Back to Introduction Back to Introduction

8 What do the lungs do? Your lungs receive the air you breathe in through your nose. When you breathe in, the lungs puff- out or inflate, and deflate when you breathe out. From the air, they take the useful part - oxygen ( a gas ), and convert it for use in the body via the bloodstream. The blood swaps carbon dioxide ( the waste material ) for oxygen in the lungs. This is why the lungs are often said to convert gases. Your lungs receive the air you breathe in through your nose. When you breathe in, the lungs puff- out or inflate, and deflate when you breathe out. From the air, they take the useful part - oxygen ( a gas ), and convert it for use in the body via the bloodstream. The blood swaps carbon dioxide ( the waste material ) for oxygen in the lungs. This is why the lungs are often said to convert gases. Back to Introduction Back to Introduction Back to Introduction Back to Introduction

9 Lungs key facts You have 2 lungs. Your lungs are protected by your ribcage. Close-up, they look like a wet sponge. The left lung is smaller - to accommodate your heart (see the x-ray showing the heart). Your lungs are particularly vulnerable to breathing-in nasty substances - toxic chemicals, smoke from fires and cigarette smoke all damage your lungs. You have 2 lungs. Your lungs are protected by your ribcage. Close-up, they look like a wet sponge. The left lung is smaller - to accommodate your heart (see the x-ray showing the heart). Your lungs are particularly vulnerable to breathing-in nasty substances - toxic chemicals, smoke from fires and cigarette smoke all damage your lungs. Back to Introduction Back to Introduction Back to Introduction Back to Introduction

10 The circulation Blood (with oxygen and nutrients) goes round our bodies via the heart. We call this circulation ( from the word circle ). The heart sends blood to the lungs first to collect the oxygen from the air weve just breathed- in, then it goes to where its needed ( this is shown in red ). The blood then returns to the lungs via the heart ( this is shown in blue ) with carbon dioxide - the gas that we breathe out. This is described as a figure of 8. Blood (with oxygen and nutrients) goes round our bodies via the heart. We call this circulation ( from the word circle ). The heart sends blood to the lungs first to collect the oxygen from the air weve just breathed- in, then it goes to where its needed ( this is shown in red ). The blood then returns to the lungs via the heart ( this is shown in blue ) with carbon dioxide - the gas that we breathe out. This is described as a figure of 8. Back to Introduction Back to Introduction Back to Introduction Back to Introduction

11 Pulse and exercise When you exercise parts of your body need an increased blood supply (more oxygen and nutrients) so your heart beats faster. You also breathe faster - to get more oxygen into your lungs, and to get rid of the carbon dioxide. You also get hot and sometimes flushed (or red faced). When you exercise parts of your body need an increased blood supply (more oxygen and nutrients) so your heart beats faster. You also breathe faster - to get more oxygen into your lungs, and to get rid of the carbon dioxide. You also get hot and sometimes flushed (or red faced). What parts of the body need an increased blood supply when running? Take your resting pulse and produce a bar chart of your groups results. What is the most common range for pulse? Back to Introduction Back to Introduction Back to Introduction Back to Introduction

12 Pulse rate data Back to Introduction Back to Introduction Back to Introduction Back to Introduction

13 How do I look after them? By doing exercise regularly: our hearts get fitter and bigger - better at pumping blood and not needing to work so hard or fast. our lungs get stronger and have increased capacity so we are able to take in more oxygen in a single breath. we will feel healthier. By doing exercise regularly: our hearts get fitter and bigger - better at pumping blood and not needing to work so hard or fast. our lungs get stronger and have increased capacity so we are able to take in more oxygen in a single breath. we will feel healthier. How can we check that exercise is good for our hearts or lungs? What else could we check to see if exercise is good for us? Back to Introduction Back to Introduction Back to Introduction Back to Introduction

14 Heart and Lungs Quiz Are they True or False? Your heart pumps blood around your body. The heartbeat of smaller animals and children is slower than adults or big animals. Your blood carries carbon dioxide to all the parts that need it. Your lungs exchange gases. Blood travels around the body in a figure of 8. Your pulse tells you how much air you are breathing. Athletes have a slower resting pulse than unfit people. The ribs are bones that protect the heart and lungs. Exercise and eating healthily are good for your heart. Are they True or False? Your heart pumps blood around your body. The heartbeat of smaller animals and children is slower than adults or big animals. Your blood carries carbon dioxide to all the parts that need it. Your lungs exchange gases. Blood travels around the body in a figure of 8. Your pulse tells you how much air you are breathing. Athletes have a slower resting pulse than unfit people. The ribs are bones that protect the heart and lungs. Exercise and eating healthily are good for your heart. Back to Introduction Back to Introduction Back to Introduction Back to Introduction

15 Heart and Lungs Quiz Your heart pumps blood around your body. –True The heartbeat of smaller animals and children is slower than adults or big animals. –False – the smaller the animal the faster the heartbeat. Your blood carries carbon dioxide to all the parts that need it. –False – the blood carries oxygen to all the parts that need it. Your lungs exchange gases. –True Blood travels around the body in a figure of 8. –True Your pulse tells you how much air you are breathing. –False – pulse tells us how fast your heart is beating. Athletes have a slower resting pulse than unfit people. –True The ribs are bones that protect the heart and lungs. –True Exercise and eating healthily are good for your heart. –True Your heart pumps blood around your body. –True The heartbeat of smaller animals and children is slower than adults or big animals. –False – the smaller the animal the faster the heartbeat. Your blood carries carbon dioxide to all the parts that need it. –False – the blood carries oxygen to all the parts that need it. Your lungs exchange gases. –True Blood travels around the body in a figure of 8. –True Your pulse tells you how much air you are breathing. –False – pulse tells us how fast your heart is beating. Athletes have a slower resting pulse than unfit people. –True The ribs are bones that protect the heart and lungs. –True Exercise and eating healthily are good for your heart. –True Back to Introduction Back to Introduction Back to Introduction Back to Introduction

16 Useful links for further study http://www.schoolscience.co.uk/content/4/biology/abpi/heart/index.html Back to Introduction Back to Introduction Back to Introduction Back to Introduction


Download ppt "Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy Unit 5a: Keeping Healthy The Heart and Lungs Unit 5a: Keeping Healthy Unit."

Similar presentations


Ads by Google