The Respiratory System

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Human Anatomy

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The Respiratory System

The Respiratory System

Medical Report-Cystic Fibrosis (CF) Cystic Fibrosis, or CF, is caused when both parents have the CF gene. Unfotunelty, this means CF is not something you can "catch" or prevent. About 3,000 children are born with CF every year. CF is more common in European descent. Cystic Fibrosis is when the body's ability to move salt and water in and out of cells is messed up. This causes build-ups of mucus in the lungs and airways, making it really difficult to breathe. CF is a very serious condition. CF also affects the sweat glands and male fertility.

Diagram of the Respiratory System

All the organs in the Respiratory System have specific functions. Here they are:Nasal Cavity: The air travels into the system here. Dirt and other small particles are filtered out of the air. Oral Cavity: Can be used as a back-up for air to travel in and out. Pharynx: This is where the back of your throat splits into two sides: the part where your food goes down to your stomach and the part where your air goes to travel down into your lungs. The Pharynx is where the split is. Epiglottis: This is a flap behind your tongue that controls your gag reflex. Larynx: The most important function is that it stops things from entering the lungs that aren't supposed by starting coughing and other actions. The larynx is also where all sound starts.Vocal Chords/Folds: This is where sound produced by the Larnx is "shaped" and turned into words. Trachea: The pipe that air travels down to get to the lungs.Diaphragm: The muscle that sits under the lungs. When it contracts/relaxes, it pushes air in and out of the lungs. Lungs: The chamber where alveoli are. The alveoli are the little tiny chambers where oxygen is put into the bloodstream, and carbon dioxide is sent back the other way.

The Breathing ProcessInhalation1. Diaphragm contracts and pulls in air through your nose. 2.Air is filtered through your nose.3.Air travels downwards through your trachea and into one of your lungs. 4.The air continues to travel down to the alveoli, where oxygen is sent into the bloodstream and carbon dioxide is sent back the other way. Exhalation:Diaphragm relaxes, and Carbon Dioxide and othe unused gasses in the air are pushed back out of the nose or mouth.

The Respiratory System works with just about every system in the body. This is because the Respiratory System supplies oxygen for every cell in every system, and all cells need oxygen to survive. However, the Respiratory works closely with the Circulatory System, because the Respiratory System puts air in the bloodstream and the Circulatory System pumps blood. The Respiratory System also works with the Nervous System. Not only is their nerves in the throat and in other organs, (that's how your throat can hurt), but the Nervous System controls involuntary actions like the gag reflex.

Fun Facts1. The capillaries in the lungs would extend 1,600 kilometres if placed end to end.2.The breathing rate is faster in children and women than in men.3.An adult lung contains 300 million to 500 million tiny air sacs, known as alveoli, at the ends of the bronchioles.4.The lining of alveoli produces a substance called a surfactant. The surfactant reduces the surface tension of water, preventing the alveoli from collapsing.5. A high level of carbon dioxide in the blood is more important in triggering inhalation than a low level of oxygen.

The Respiratory System puts oxygen in the bloodstream. Some of its organs make sound so you can speak, cough, hiccup, and gag.

"The Respiratory System." Body by Design. Gale, 2007. Science in Context. Web. 10 Feb. 2015.Rosick, Edward. "Cystic fibrosis." The Gale Encyclopedia of Genetic Disorders. Ed. Stacey L. Blachford. Detroit: Gale, 2010. Science in Context. Web. 10 Feb. 2015.Browder, Leila. LIfe.CrashCourse. “Circulatory ' Respiratory Systems - CrashCourse Biology #27” Online video clip. YouTube. YouTube, Jul 30, 2012 Web. 1 March. 2012swtsco. “Cystic fibrosis at school.” Online Video Clip. YouTube. YouTube25 Jan. 2013. Web. 24 Feb. 2015.

Think you got it?Go to Kahoot here!https://create.kahoot.it/#quiz/bb1f61c2-916a-47ce-9b55-ae8d30f94e42/done

My cousin has CF and is in this video. She is being treated and is playing the violin.


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