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"The respiratory system allows the exchange of the gases between the air and body."

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The respiratory system allows the exchange of the gasses between the air and the body

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Alveoli are tiny air sacs that are surrounded by capillaries.Oxygen in the air diffuses across the alveoli wall and into capillaries.At the same time,carbon diffuses out of the blood, across the walls of the capillaries and into alveoli.

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Alveoli are tiny air sacs. Capillaries surround them. When you breathe in, air fills up the air sacs.

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Air passes through two large passageways. The passageways are called bronchi. The bronchi lead into smaller and smaller passageways called bronchioles.

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The bronchi lead into smaller passageways called bronchioles.The bronchioles divide into smaller and smaller passageways until the reach alveoli. Air passs through the trachea into two large passageways inside the lungs.

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The respiratory system allows the exchanges of the gases between the air and body.

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oxygen diffuses across the alveoli  walls and into the capillaries

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the respiratory system allows the exchange of the gases between the air and body.The exchange takes place in the lungs.

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Cellular respiration is the breakdown of food to produce energy.

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The larynx is at the top of the trachea and it contains tissue known as vocal cords. Muscles pull the vocal cords together and they vibrate as air moves between them, causing the vocal cords to produce sound.

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A small flap of tissue called the epiglottis.

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A small flap of tissue called the epigottis covers the entrance into your lungs to prevent food from entering the lungs when you swallow. when you breath, the epiglottis stays open so air will enter into the lungs

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~Diaphragm controls breathing
~It increases the volume of the chest cavity
~The diaphragm moves down when it contracts and so air is inhaled

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Breathing is the inhalation and exhalation of air.

Breathing is important to respiration because it provides  the oxygen needed for aerobic respiration

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The respiratory system is the exchange of the gasses in between the body.

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Breathing allows carbon dioxide in the lungs.
Important to respiration because it provides oxygen needed for aerobic respiration.

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A large muscle at the bottom of the chest cavity called the diaphragm controls breathing. When the diaphragm relaxes, the volume of the chest cavity decreases. The diaphragm moves up and air is exhaled.

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Air enters body through nasal cavity or mouth, then it passes through the pharynx. Epiglottis covers the lungs.

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- Respiration and breathing are two different things.
- Cellular respiration is the breakdown of food to produce energy.
- However, cellular respiration produces MUCH more energy when oxygen is present

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The key details are that gas exchange enters through nasal cavity or mouth. A small tissue flap lets air enter lungs but not the food.
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Breathing allows for uptake of oxygen and release of carbon dioxide in the lungs.Breathing is important respiration because it provides the oxygen needed for aerobic respiration.We call the organ system that supports breathing the respiratory system.

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The large muscle at the bottom of the chest cavity called the diaphragm controls breathing by contracting and relaxing.

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Respiration and breathing are 2 different things.

However cellular resperation produces much more energy when oxygen is present.