GCSE%20LEVEL%20PE

1
GCSE LEVEL PE

• Lesson 12
• A healthy active lifestyle and your Respiratory
  system
• Respiratory System 2
• Immediate and long term effects of exercise on
  the respiratory system
• The effects of lifestyle on the respiratory system

2
Connector

• On average a human takes 21 breaths during rest.
• How many breaths do you think a professional
  football player would take?
• Can you explain why?

3
Key Words

• Carbon monoxide

4
Big Picture

• You will use the text books, powerpoints and your
  prior knowledge to learn about the short-term and
  long term effects of exercise on the respiratory
  system.

5
Learning Outcomes

• All students will be able to identify three
  short-term effects of exercise on the respiratory
  system.
• All students will be able to identify two
  long-term effects of regular exercise on the
  respiratory system.
• Most students will be able to explain the effects
  of regular exercise on the respiratory system.
• All students will be able to identify the effects
  of lifestyle on the respiratory system.

6
Immediate and Short Term Effects of Exercise on
the Respiratory System

• Push the chairs in to make room.
• Students jog on the spot for several minutes.
• Can you identify the 3 short term effects of
  exercise on the respiratory system?
• Breathing becomes faster
• Breathing becomes deeper
• Oxygen debt

7
Why do you think athletes in events such as the
400m are gasping for breath when they finish?

• What do you think oxygen debt means?
• Michael Johnson http//www.youtube.com/watch?vv2W
  _T77vwfQ
• Students read through p132.
• Take notes if needed.

8
Immediate and Long Term Effects of Exercise on
the Respiratory System

• Students read through page 133 and identify key
  information. Take short notes.
• Lungs become more efficient.
• Increased delivery of O2 to working muscles.
• Body copes better with exercise.
• CO2 removed more efficiently.
• Body can cope with increased production of CO2.
• Vital Capacity is increased.
• Respiratory system becomes more efficient.
• More alveoli available for gaseous exchange.
• More O2 can be absorbed and CO2 removed.
• VO2 Max is increased.
• Increased number of capillaries around the
  alveoli.
• More O2 can get into the blood and to the
  muscles.

9
Effects of Exercise Smoking on the Respiratory
System

• What do you think will happen to the respiratory
  system as a result of smoking?
• Lung damage tar, carbon monoxide...
• Alveoli become less efficient
• Harder to get O2 in and CO2 out.
• Become short of breath.
• A smokers heart has to work harder to get O2
  needed.
• Feel tired.
• Effects of smoking haemoglobin gas exchange
• http//www.youtube.com/watch?vTaAvhG2SInMfeature
  related
• Anti smoking add
• http//www.youtube.com/watch?v1MF4sCvkAAAfeature
  related

10
Review

• Read the statements and vote with your feet.
• If the effect of exercise is short term
• Stand up
• If the effect of exercise is long term
• Stand up and jog on the spot
• You may be asked to explain why

11
Review Statements

• Increased rate of breathing
• Increased vital capacity
• Increased lung volume
• Oxygen debt
• Increase depth of breathing