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Transcript

The respiratory system & respiration are:

The Respiratory System

Answers

  • During the lesson the answers to the test will come up.
  • When you notice a correct answer go back to your test and use the highlighter to highlight the correct answer.
  • Highlight the correct answer even if you got it right in the first place.

First things first:

  • This is a short multiple choice test.
  • You have 5 minutes to complete it.
  • There are only 10 questions so that is 30 seconds per question.

The Respiratory System:

Allows gaseous exchange to take place. Its purpose is getting:

  • oxygen into the body
  • cardon dioxide out of the body

Training improves the way this happens.

Lesson objectives:

1) All of you will be able to explain how the respiratory system works.

2) Most of you will be able to explain an immediate effect of exercise on the respiratory system.

3) Some of you will be able to explain at least 2 effects of long term training on the respiratory system.

Respiration

  • Is a chemical reaction that happens in our cells to produce energy.
  • Energy is what we need to fuel the cell and make them work.
  • Energy (ATP) is the product of a chemical reaction between glucose & oxygen.
  • The more oxygen and glucose a cell has the more energy it can produce.

DIFFERENT THINGS!

Alveoli

  • Alveoli are tiny air sacs where gaseous exchange takes place.
  • Gaseous exchange is when:
  • Oxygen is diffused from the respiratory system (lungs) to the circulatory system (blood).
  • Carbon dioxide is diffused from the circulatory system (blood) to the respiratory system (lungs).
  • This happens because alveoli are covered in capillaries and their walls are only 1 cell thick (easy to get through).

Nasal Cavity

  • Air enters here & through the mouth.
  • 21% of the air breathed in is oxygen.
  • 0.03% of the air breathed in is carbon dioxide.
  • It's warmed and cleaned here to make it easy to absorb by the body.

Air

The wind pipe (Trachea)

Air travels down here to the lungs

The Lungs

Diaphragm & Intercostal Muscles

Task 2:

Task:

Using the information we have gathered today plan out a long answer question to either version of this question:

In pairs:

One of you explain the route the oxygen we breathe in takes to get to the muscles.

The other one explains the route the carbon dioxide produced in our muscles takes to get out of the body.

This is the Respiratory System:

Albert is a GCSE PE student who struggles to complete the 12 minute run. His PE teacher says he need to improve his respiratory system in order to get a better result in the test.

Describe the immediate effects of exercise on the respiratory system.

Or

Explain how training will improve the effectiveness of the respiratory system.

In 4's guess 4 (one each) ways that your body adapts that from regular training to write them on a postit notes each (1 per postit). Post them on the board.

or

match the 3 definitions to the 3 key terms which are important to the respiratory system and stick them on the board with blue tack.

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