The Respiratory System By: Lindsey Fischer and Danielle Frezza.
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Transcript of The Respiratory System By: Lindsey Fischer and Danielle Frezza.
![Page 1: The Respiratory System By: Lindsey Fischer and Danielle Frezza.](https://reader036.fdocuments.net/reader036/viewer/2022072013/56649e585503460f94b51c6b/html5/thumbnails/1.jpg)
The Respiratory System
By: Lindsey Fischer
and
Danielle Frezza
![Page 2: The Respiratory System By: Lindsey Fischer and Danielle Frezza.](https://reader036.fdocuments.net/reader036/viewer/2022072013/56649e585503460f94b51c6b/html5/thumbnails/2.jpg)
Why is breathing important to staying alive?
• You can only live for a few minutes without air. We need air to survive, because it contains oxygen. Oxygen is a gas which our bodies need to maintain life.
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What does smoking do to your respiratory system?
• Smoking can cause many problems in your respiratory system. Bronchitis, emphysema, and lung cancer can be caused by smoking. Also, smoking can destroy your alveoli.
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What is the Respiratory System?
• It controls all of your breathing.
• Consists of organs that provide the body with continuous supply of oxygen and remove all carbon dioxide from body.
• Lungs are most important organs
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Parts of Respiratory System
• Mouth and nose - air enters through them
• Epiglottis –flap of tissue that closes over trachea when you swallow
• Larynx –contains vocal cords
• Bronchi –passageways for air to enter the lungs.
• Throat- Two passageways. One for air, and one for food
• Trachea –directs air to lungs
• Lungs –oxygen is transferred into blood and carbon dioxide is taken away
• Diaphragm –Large dome-shaped muscle that separates lungs from abdomen.
• Alveoli –Clusters of microscopic air sacs in lungs. Sacs at ends of smallest branches of bronchi.
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How does Respiratory System Work?
• Two important jobs1.Supplies oxygen to blood– Oxygen carried to all cells in body – Combines with nutrients to provide energy
2.Removes carbon dioxide from blood
--Releases it outside body
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How does breathing work?
• Two actions-inhaling and exhalingInhaling
-Bring in air from outside through nose and mouth-Diaphragm contracts and moves down- Ribs move out and up increasing size of chest cavity
Exhaling-Contains more carbon dioxide and less oxygen than air you inhale-Release air to outside and carbon dioxide-Diaphragm relaxes and moves up into chest cavity-Ribs move in and down making chest cavity smaller
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Lungs
• Consist of microscopic air sacs called alveoli
• In alveoli carbon dioxide and oxygen is exchanged
• Oxygen goes into blood and carbon dioxide is taken away
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Exchange of oxygen and carbon dioxide with circulatory and
respiratory system• Pulmonary arteries and capillaries (circulatory
system) take blood containing carbon dioxide from heart to lungs
• Carbon dioxide passes from blood to alveoli• In alveoli it’s exchanged for oxygen• Oxygen passes into capillaries• Picked up by blood and carried back to heart
through pulmonary veins (circulatory)
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Problems of Respiratory System
• Common site of infection
• Many germs enter nose and mouth
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Diseases or Disorders
• Flu/cold- caused by virus; cough, runny nose, aches, fever
• Tuberculosis-bacterial lung infection. Dry cough earlier, then chest pains
• Allergies-Caused by reaction to substances
• Pneumonia-Lung infection by bacteria or virus
• Bed rest and fluids Flu vaccine prevents some kinds
• Medication
• Antihistamines may relieve symptoms. Avoid substances
• Antibiotics for bacterial kind; bed rest for viral kind
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Diseases or Disorders
• Bronchitis-swelling of bronchi due to infection
• Asthma-Bronchial swelling and blockage
• Emphysema-Alveoli destroyed difficult to breath, fatal
• Lung Cancer-Alveoli destroyed. Caused by smoking
• No cure. After time symptoms disappear.
• No cure. Medications reduce swelling
• No cure. Pure oxygen eases breathing
• Surgery, radiation, chemotherapy. Low survival rate.