The circulatory system circulates blood through the heart and blood vessels to supply nutrients and oxygen to the entire body. The heart pumps blood an average of 60-70 times per minute to circulate the three main types of blood cells: red blood cells, white blood cells, and platelets. Red blood cells carry oxygen, white blood cells fight infection, and platelets help the blood to clot. Coronary artery disease occurs when the arteries become clogged over time, limiting blood flow to the heart, and can cause symptoms like chest pain and shortness of breath. Prevention involves lifestyle changes like a healthy diet, exercise, and stress reduction, and may also require medication.

1. Learn about The circulatory system By Madison Body Year 9, Paeroa College New Zealand

2. Contents Slide 1 picture of circulatory system 2 picture of the heart 3 picture of blood 6-10 how much we know 11 the purpose of the heart 12 the purpose of blood 13 coronary artery disease 14 coronary artery disease prevention 15 c oronary artery disease symptoms 16 end

3. The CIRCULATORY System

4. The Heart

5. The Blood

6. 1) In one minute the heart pumps a) 70-80 b) 80-90 c) 60-70 How much do you know? 2) You have __ different types of blood cells a) 1 b)2 c)3

7. 3) Red blood cells are the most common type of blood cell a) True. b) false 4) Platelet blood cells a) don’t exist b) live in your body forever c) Die between 8-12 days How much do you know?

8. 5) White blood cells fight infections a) True b) False 6) When the number of platelets in your blood is too low a) You die b) Blood clots form c) Bleeding can occur How much do you know?

9. How much do you know? 7) When the number of platelets in your blood is too high a) You die b) Blood clots form. c) You get very sick 8) the blood is very important for our body to a) Survive b) Supply nutritive to every part of the body c) Send oxygen threw the body d) all of the above

10. How much do you know? 9) You don’t need blood to live a) True b) False 10) If you don’t have a heart you will die a) True b) False

11. The Purpose of the HEART How does the HEART work The heart keeps your blood pumping around your body. The heart is a little larger than a clenched fist. Your heart pumps 24 hours a day, 70 to 80 times a minute. It sends blood to your lungs to pick up oxygen.

12. The Purpose of the BLOOD How does BLOOD work The propose of the blood is to send fluid through the heart and blood vessels it supplies nutrients to every part of the body. It is colourless fluid, there are three kinds: red, white and platelets

13. Coronary artery disease Coronary artery disease is when your artery’s get clogged up, this happens slowly over time

14. coronary artery disease Symptoms Shortness of breath Palpitations irregular heart beats, skipped beats, or a "flip-flop" feeling in your chest A faster heartbeat Weakness or dizziness Nausea Sweating Symptoms of coronary artery disease include

15. coronary artery disease Prevention To prevent coronary artery disease you need to manage symptoms and reduce the risk of heart attack and stroke. Lifestyle changes for example eat the right foods and exercise. Also less stress would be good.These are the first thing you need to do, but you may need medicines

16. The End