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The Cardiovascular System During Exercise.

The Cardiovascular System During Exercise. Mr. P. Leighton GCSE PE. By the end of the lesson…. All of you: Will understand the principle parts of the Cardiovascular System. Most of you: Will understand the key terms of HEART RATE, BLOOD PRESSURE, SYSTOLIC and DIASTOLIC PRESSURE.

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The Cardiovascular System During Exercise.

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  1. The Cardiovascular System During Exercise. Mr. P. Leighton GCSE PE

  2. By the end of the lesson… • All of you: Will understand the principle parts of the Cardiovascular System. • Most of you: Will understand the key terms of HEART RATE, BLOOD PRESSURE, SYSTOLIC and DIASTOLIC PRESSURE. • Some of you: Will begin to understand the IMMEDIATE and SHORT TERM effects of exercise on the body.

  3. What is the CARDIOVASCULAR SYSTEM… • Look on you paper- circle the key parts of the CV System…

  4. The Cardiovascular System… • The CV system includes THE HEART, BLOOD and BLOOD VESSELS. • The Lungs play an important part also. • The HEART is best described as A MUSCULAR PUMP. • The Bloods main functions are… • To supply the body with O2 and Nutrients. • To remove waste products such as CO2 and LACTIC ACID.

  5. So What happens during exercise? • Exercise has a number of IMMEDIATE effects upon the CV System. • Increased HR • Release of ADRENALINE • Increased O2 uptake • Eating before Exercise?

  6. What are your Heart Rates? • Take your pulse now (Resting HR) • What was it? ____________ BPM • Take your pulse now (HR after Activity) • What was it? ____________ BPM

  7. Systole and Diastole… • Your heart makes two distinct noises when it beats… • Systole _____________ . • Diastole _____________ . • Your BLOOD PRESSURE is a combination of the two- it is the force exerted on the walls of the arteries.

  8. So what is… • HEART RATE _________________________________________________________ . • BLOOD PRESSURE ________________________________________________________ .

  9. Think back to being outside… • What were the immediate effects on your body because of exercise? • _______________________ • _______________________ • _______________________ • _______________________

  10. The Immediate physiological effects of exercise on the body. Breathing becomes faster and deeper. • Why? • _____________________________ . • Challenge…

  11. Body temperature increases… • Muscles get warmer in activity- causing the whole body temperature to rise. • What is the average human temperature? • Guess_____ Answer: ______ • A: How is temperature regulated? • A: Sweating • Q: Why do we shiver?

  12. Sweating starts and the body requires fluid. • Sweat comes from _______________________________ . • Energy in the form of heat is needed for it to evaporate. • As heat is lost and energy is expended… ______________________________ . • What else is lost? • A: _________

  13. Under normal conditions the body regulates water…

  14. What else is lost when sweating? • Salts must be replaced during and after exercise- otherwise __________ and ___________ can occur. • What happens in sports to counteract this?

  15. Muscles begin to ache. • In order to work muscles need _______ and ________ . • Energy comes mainly from food- specifically G__________ . • The process of getting energy is called __________ .

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