1. Year 11 GCSE PE THE CARDIOVASCULAR SYSTEM

2. OBJECTIVES TO KNOW THE JOURNEY OF BLOOD THROUGH THE CARDIOVASCULAR SYSTEM TO UNDERSTAND HOW THE HEART WORKS TO BE ABLE TO LABEL A DIAGRAM OF THE HEART

3. QUICK QUIZ 1.NAME THE AGONIST AT THE ELBOW WHEN THROWING A JAVELIN 2.WHAT IS A SYNERGIST? 3.WHAT TYPE OF MUSCLE ACTION IS THE DOWN PHASE OF A PRESS UP? 4.NAME THE AGONIST AT THE SHOULDER FOR THIS MOVEMENT

4. ANSWERS 1.TRICEPS 2.A MUSCLE THAT ASSISTS THE AGONIST BY SUPPORTING THE BODY OR JOINT DURING MOVEMENT 3.ISOTONIC ECCENTRIC 4.PECTORALS

5. What is made up of the Cardiovascular system

6. What is the CARDIOVASCULAR system?  The HEART, LUNGS, BLOOD and BLOOD VESSELS +  BLOOD is pumped around the body by the HEART through the BLOOD VESSELS  BLOOD performs two main functions as it travels around the body: – 1. supply the body with oxygen and nutrients – 2. to remove waste products such as carbon dioxide

7. Why is the CV system important

8. Why is the CV system important?  The HEART is the most important muscle in the body  A strong CV system often means that you have good cardiovascular fitness  This means that you have the ability to exercise the whole body for long periods of time  CV fitness is important for everyone, not just sports people!

9. Sport and the CV system IN SPORT, THE CV SYSTEM DELIVERS OXYGEN TO OUR WORKING MUSCLES and organs

10.  Blood vessels that run throughout the body allow the blood to travel everywhere  Let’s look closer at the path of the blood...

11. The circulatory system body’s cells lungs Deoxygenated blood is pumped from the heart to the lungs through the pulmonary artery. Oxygenated blood returns to the heart through the pulmonary vein. Oxygenated blood is pumped at high pressure from the heart to the body through the aorta. Deoxygenated blood returns to the heart through the vena cava.

12. The double circulatory system oxygenated blood to the rest of the body through the arteries deoxygenated blood back to the heart through the veins. The pulmonary circulation carries: deoxygenated blood from the heart to the lungs oxygenated blood back from the lungs to the heart, ready to be pumped out to the body. The systemic circulation carries: lungs body’s cells

13. THE HEART

14. TASK 1 YOU HAVE 5 MINUTES TO LABEL YOUR HEART DIAGRAM

15. BILLY THE BLOOD CELL BILLY HAS NO OXYGEN TO GIVE HE IS IN THE VENA CAVA HE NEEDS TO COLLECT OXYGEN TO GIVE IT AWAY TO MARTY THE MUSCLE, SO HE MAKES HIS WAY INTO THE RIGHT ATRIUM HE THEN PASSES DOWN INTO THE RIGHT VENTRICLE HE NOW GETS PUMPED THROUGH THE PULMONARY ARTERY TO THE LUNGS TO PICK UP OXYGEN NOW HE HAS OXYGEN HE GOES BACK TO THE HEART VIA THE PULMONARY VEIN

16. BILLY NOW RETURNS TO THE HEART INTO THE LEFT ATRIUM HE PASSES DOWN INTO THE BIGGEST CHAMBER, THE LEFT VENTRICLE FROM HERE BILLY CAN NOW BE SENT ON HIS WAY TO MARTY HE IS PUMPED THROUGH THE AORTA TO THE WORKING MUSCLES

17. TASK 2 COPY THE SIMPLIFIED DIAGRAM

18. DEFINITIONS HEART RATE (HR): THE NUMBER OF TIMES THE HEART CONTRACTS IN 1 MINUTE STROKE VOLUME (SV): THE AMOUNT OF BLOOD EJECTED FROM THE HEART IN ONE BEAT CARDIAC OUTPUT (Q): THE AMOUNT OF BLOOD EJECTED FROM THE HEART IN 1 MINUTE Q = HR X SV EG. HR = 72BPM, SV = 70ML Q = 72 X 70 = 5040ML = 5 LITRES

19. TASK 3 WORK THROUGH THE FOLLOWING EXAMPLES: HR = 110, SV = 80ML, WHAT IS Q? HR = 85, Q = 5250ML, WHAT IS SV? SV = 75, Q = 6000ML, WHAT IS HR?

20. ANSWERS 110 X 80 = 8800ML = 8.8L 5250 / 85 = 62ML 6000 / 75 = 80BPM

21. HOMEWORK On wikispaces please complete by next Monday without fail

22. Diagram: HANDOUT  Colour in and label the diagram of the cardiovascular system  Label the following;  The heart  The lungs  The body  Colour the corrects sides;  De-oxygenated blood = blue  Oxygenated blood = Red

23. Correct order...  The blood passes into the left atrium  The blood re-enters the heart via the pulmonary vein  The blood passes through the bicuspid valve and into the left ventricle  The blood is pumped through the semi-lunar valve  The blood leaves the heart via the aorta  The blood travels to the lungs where it fills with oxygen and loses its carbon dioxide  The blood passes out of the heart via the pulmonary artery  The blood is pumped through the semi-lunar valve  The blood passes through the tricuspid valve and into the right ventricle  The blood passes into the right atrium  The blood enters the heart from the body via the vena cava  The blood travels around the body, depositing oxygen and collecting carbon dioxide

24.  Stand up behind your desk  Complete the following workout;  March on the spot for 30 secs  Jump up and down 10 times  Jog on the spot for 30 seconds  Crouch down and stand up 5 times  Run on the spot for 30 seconds  What happens to your body?