The Respiratory System

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The Respiratory System
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Bell Ringer

• Try and guess the parts of the body that make up
  the respiratory system.
• Can you think of any problems related to the
  respiratory system?
• What do you think is the most important way to
  protect your respiratory system?

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Chatting!! NO MAS!!
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Anti-Smoking Poster Project!
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Sneak peak

• http//www.youtube.com/watch?vRPdGQ-A_yM4

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The Respiratory System is Confusing!

• What is the worlds dumbest question???
• The question you dont ask!!!!

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Main Function of the Respiratory System

• Respiration
• The exchange of gases between your body and your
  environment.
• Just like fire needs oxygen to burn, your cells
  cannot burn enough fuel to keep you alive
  without oxygen.

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2 Parts of Respiration

• 1. External Respiration
• The exchange of oxygen and carbon dioxide
  between the blood and the air in the lungs.

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External Respiration

• As you breathe, you inhale air that contains
  oxygen into your lungs.
• That oxygen moves from your lungs into your
  blood.
• At the same time carbon dioxide moves from your
  blood to your lungs.

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2 Parts of Respiration

• 2. Internal Respiration
• The exchange of gases between the blood and the
  cells in the body.

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Internal Respiration

• Oxygen moves from your blood into your cells.
• Carbon dioxide moves from your cells into your
  blood.

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How Respiration Works

• 1. When you breathe, air enters through your nose
  or mouth.
• 2. The nasal passage warms the air and contains a
  mucous lining and cilia(hairs) to remove dirt and
  other particles.

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Fill in Diagram!
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How Respiration Works

• 3. After passing though your nasal passage or
  mouth, air moves though your larynx (voice box)
  which contains your vocal cords.

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How Respiration Works

• Voice box contains vocal cords which are thin
  bands of tissue that vibrate when exhaled air
  rushes past them enables you to make sounds.

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Fill in Diagram
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How Respiration Works

• 4. After passing through the larynx, air enters
  the trachea (wind pipe).
• 5. Trachea is about 4.5 inches long surrounded
  by rings of cartilage to keep it open so air can
  travel through it freely. Lined with cilia.

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Fill in Diagram!
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How Respiration Works

• 6. The trachea breaks off into two tubes called
  the bronchi.
• 7. The bronchi lead into your lungs.
• 8. The bronchi are broken down into smaller
  passageways that are called bronchioles.
• 9. Think of how a trees branches are made up.

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Fill in Diagram!
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Think, Pair, Share

• Discuss the flow of oxygen through the body so
  far.

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How Respiration Works

• 10. Next air enters the alveoli tiny sacs at
  the end of the bronchioles.
• 11. This is where external respiration takes
  place.

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Fill in Diagram!
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How Respiration Works

• 12. The alveoli are lined with tiny blood vessels
  called capillaries.
• 13. Oxygen is transferred from the alveoli to the
  capillaries.
• 14. Veins take the oxygen to the cells throughout
  the body.

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Think, Pair, Share

• Think about external respiration.
• Talk to your partner about what this means and
  where it happens.
• Answer questions that your partner has or make a
  list of questions for me!

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How Respiration Works

• 15. Our cells use oxygen for energy.
• 16. When this happens carbon dioxide is produced.
• 17. The body needs to get rid of that carbon
  dioxide.
• 18. This is where internal respiration occurs.

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Helpers of the Respiratory System

• 1. Diaphragm - large sheet-like muscle that
  separates the lungs from the abdominal cavity.
  Expands and contracts during respiration.
• http//www.youtube.com/watch?vhp-gCvW8PRY

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Helpers of the Respiratory System

• 2. The pleura is a slick, shiny mucous membrane
  that covers the lungs.
• 3. The pleura helps minimize friction between the
  lungs and the inner wall of the chest.
• 4. The cilia are tiny hairs that line the
  respiratory tract to filter out dust and dirt
  particles.

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Respiratory System Problems

• 1. Bronchitis inflammation of the bronchi.
• Symptoms include wheezing, coughing, and
  shortness of breath.
• Caused by exposure to cigarette smoke, dust,
  fumes and other air pollutants.

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Respiratory System Problems

• 2. Asthma inflammatory condition in which the
  trachea, bronchi and bronchioles become narrower,
  making breathing more difficult.
• Attacks can be triggered by exertion, emotion,
  infections, allergies, or even changes in the
  weather.
• Asthma attacks are treated with bronchodilators
  medications that relax and wide the airways.

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Respiratory System Problems

• 3. Pneumonia - alveoli swell and become clogged
  with mucus. When the alveoli becomes clogged, gas
  exchange become much more difficult.
• Symptoms include fever, chest pain, chills, and
  cough
• MUST see a doctor for antibiotics!!!!

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Respiratory System Problems

• 4. Emphysema disease in which the alveoli in
  the lungs burst and blend to form fewer, larger
  sacs with less surface area.
• Disrupts the normal exchange of carbon dioxide
  and oxygen in the alveoli.
• Causes difficulty breathing, chronic cough
• Almost always caused by smoking. DONT SMOKE!!!

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How to Care for the Respiratory System

• Exercise keeps lungs working efficiently
• DONT SMOKE!!!!!
• Avoid exposure to pollutants, including second
  hand smoke!
• Wash your hands and keep them away from nose and
  mouth prevents infection
• Maintain good oral health germ in your mouth
  can cause infections. BRUSH 2 times a day!!