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Human Physiology Lesson 14- Heart Rate and Exercise

Human Physiology Lesson 14- Heart Rate and Exercise. Pulse Rate investigation. Heart Rate. Control of Heart Rate. The medulla and hypothalamus detect changes in the chemical composition of the blood They send nerve impulses to the SAN to increase the electrical stimulation of the heart

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Human Physiology Lesson 14- Heart Rate and Exercise

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  1. Human Physiology Lesson 14- Heart Rate and Exercise Pulse Rate investigation

  2. Heart Rate

  3. Control of Heart Rate • The medulla and hypothalamus detect changes in the chemical composition of the blood • They send nerve impulses to the SAN to increase the electrical stimulation of the heart • Accelerator Nerve and Noradrenalin Neurotransmitter

  4. To investigate what affects your pulse and breathing rate Factors that affect Breathing and pulse rate

  5. HEART RATE AND EFFECT OF EXERCISE • What happens to your heart rate and breathing rate when you exercise and why?

  6. Exercise and Cardiovascular Fitness • What is your resting heart rate? • What is your resting breathing rate? • What happens to these when you exercise? • Why does this happen?

  7. Heart Rate Changes

  8. EXERCISE TERMS • Cardiac Output- • Stroke Volume- • Heart Rate-

  9. EXERCISE TERMS • Cardiac Output- determines how hard the heart is working. It is measured by calculating the volume of blood that leaves the heart every minute. An adult at rest will have a cardiac output of roughly 7 litres per minute • Stroke Volume- The volume of blood pumped per beat • Heart Rate-Number of beats per minute

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