Keynote Presentation

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The Respiratory System

• Keynote Presentation
• by Jamie York

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TrueorFalse

• You can live longer without food and water than
  you can without oxygen?

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True

• You can only live a few minutes if your
• body doesnt have oxygen!

Why?
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Your body cannot store oxygen like it can store
food. You must provide your body with
fresh oxygen all the time!
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Body Systems

• Skeletal
• Muscular
• Circulatory
• Digestive
• Respiratory
• Excretory
• Endocrine
• Nervous

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You will learn

• The main parts of the Respiratory System
• The jobs of the Respiratory System
• What breathing and Respiration are all about
• Ways you can prevent damage to your Respiratory
  System

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Who nose the parts of the Respiratory System?
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NOTE A Each air sac is covered with tiny blood
vessels (CAPILLARIES). Oxygen moves from air sacs
into capillaries. Carbon dioxide moves in the
opposite direction. Red blood cells transport
these gases to and from all the cells in our
body.
NOTE B If too much mucus is made then the
passage way gets smaller and air has a harder
time to get through. This can happen in chronic
bronchitis and asthma.
NOTE C Air flows from bronchioles into millions
of tiny air sacs called ALVEOLI. The sacs look
like bunches of grapes at the end of the
bronchial tubes. The alveoli are where the oxygen
from the air enters your blood, and the carbon
dioxide from your body goes into the air. Alveoli
are very tiny, but you have a lot of them in your
lungs. In fact, you have 300,000,000 alveoli in
each lung. That's six hundred million in total -
and your body needs them all to get enough oxygen
in your blood!
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The Respiratory System has two main jobs

• Provide oxygen for the body
• Remove gaseous wastes from the body

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The Circulatory and Respiratory Systems work
together to get the jobs done! Can you explain
how? Take a deep breath and think about it.
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Lets break down the process

• Breathing - oxygen is inhaled
• Circulation - oxygen is carried to the cells
• Respiration - oxygen and sugar combine in a
  chemical reaction to release ENERGY
• Circulation - carbon dioxide is carried to the
  lungs
• Breathing - carbon dioxide is exhaled

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What is respiration?

• After all, the system has been named for it!

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Respiration is...

• A process that takes place in the cells of your
  body.
• Oxygen combines with sugar, and ENERGY is
  released!
  Carbon dioxide and water are produced as
  wastes.

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YAWN!

• Thats too much information!
• Why do I need to understand that?

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You need to understand that...
Your brain controls
breathing by sensing the
amount of carbon dioxide
in your body.

• For example
• Yawning is your bodies way of releasing extra
  carbon dioxide.

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Think about this...Why do you breath harder
when you run?
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• Your muscles need more
• oxygen to work hard.
• Breathing harder
• releases carbon dioxide
• and brings in
• more oxygen quickly!

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What if we run out of oxygen?!
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If we care for the plant life in our
environment, we wont!

• Plants release the oxygen we need through
  photosynthesis, and we release the carbon dioxide
  they need when we breath.

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What can harm the Respiratory System?

• Bacteria Viruses
• Asthma Allergies
• Polluted Smoke-filled air

Respiratory System problems can become serious
quickly. YOU NEED OXYGEN TO SURVIVE!
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Keep your Respiratory System healthy!

• Exercise regularly
• Avoid polluted air
• NEVER smoke!