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NOW.

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How oxygen, carbon dioxide, and water move in the lungs.

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How oxygen, carbon dioxide, and water move in the lungs.

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Oxygen passes through the wall of the alveoli and the capillary wall into the blood. Carbon dioxide and water pass from the blood into the alveoli.

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To speak, the larynx,  the vocal cords are what help you and make you speak. To breathe, the diaphragm plays a huge roll in breathing, when you inhale rib muscles contract the diaphragm also contracts and moves downwards. A muscle fills with oxygen and the bigger the muscle gets the more air air will come in.

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Respiration- The process of oxygen moving in the body allowing a person to breathe.
lungs-Main organs of the respiratory system where gas exchange takes place.
cilia- Hair like projections on outside of cells that move in a wavelike manner.
Alveoli- Tiny sacs of lung tissue specialized for the movement of gasses between the air and blood.
Pharynx- The throat
Trachea- The windpipe
Diaphragm- A large dome shaped muscle that is important for breathing.
Larynx- voice box
Bronchi- The passages that branch from the trachea and direct air into the lungs.
Vocal cords- Folds of connective tissue  that stretch across the openings of the larynx and produce a persons voice

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One way the system interacts with another system.

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One way the system interacts with another system.

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The respiratory system interacts with the muscle system when the rib muscles move up as the person breathes.

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Air passes through the nose, epiglottis, larynx, trachea, and bronchus to get to the lungs.

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Food can sometimes enter the trachea wrong blocking the opening and not letting air get to the lungs.

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The function of the respiratory system is to get oxygen to lungs and move carbon dioxide out of your body so you can survive.,

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Lungs- Oxygen passes into the blood and CO2 passes out.
Pharynx- Air moves down into it. Sometimes passageway is used for food.
Trachea- Leads from pharynx to lungs. Walls are made up of cartilage which keeps it from collapsing.
Nose- Air enters through nostrils. Lined with cilia and mucus keeping air warm and moist.
Bronchus- Air moves from trachea into left and right bronchi. One leads to left or right lung depending on which one it is.