Lungs
The lungs are the main organs of the respiratory system. In the lungs oxygen is taken into the body and carbon dioxide is breathed out. The red blood cells are responsible for picking up the oxygen in the lungs and carrying the oxygen to all the body cells that need it. The red blood cells drop off the oxygen to the body cells, then pick up the carbon dioxide which is a waste gas product produced by our cells. The red blood cells transport the carbon dioxide back to the lungs and we breathe it out when we exhale.
Trachea
The trachea is sometimes called the windpipe. The trachea filters the air we breathe and branches into the bronchi
Bronchi
The bronchi are two air tubes that branch off of the trachea and carry air directly into the lungs.
Diaphragm
Breathing starts with a dome-shaped muscle at the bottom of the lungs called the diaphragm When you breathe in, the diaphragm
contracts. When it contracts it flattens out and pulls downward. This movement enlarges the space that the lungs are in. This larger space pulls air into the lungs. When you breathe out, the diaphragm expands reducing the amount of space for the lungs and forcing air out. The diaphragm is the main muscle used in breathing.
Nose -Inspiration and expiration usually occurs through the nose. The nose has main two functions: The cilia and hairs which line the nasal cavities trap dust and other foreign particles and the rich supply of blood surrounding the cavities warms the air before it enters the lungs.
Pharynx - allows for separation of food and air. The epiglottis closes the trachea when we eat and opens when we breathe.
Larynx - this structure sits on top of the trachea. Air rushing across two ligaments causes sounds that we shape into speech. Also called the voice box.
The lungs are the main organs of the respiratory system. In the lungs oxygen is taken into the body and carbon dioxide is breathed out. The red blood cells are responsible for picking up the oxygen in the lungs and carrying the oxygen to all the body cells that need it. The red blood cells drop off the oxygen to the body cells, then pick up the carbon dioxide which is a waste gas product produced by our cells. The red blood cells transport the carbon dioxide back to the lungs and we breathe it out when we exhale.
Trachea
The trachea is sometimes called the windpipe. The trachea filters the air we breathe and branches into the bronchi
Bronchi
The bronchi are two air tubes that branch off of the trachea and carry air directly into the lungs.
Diaphragm
Breathing starts with a dome-shaped muscle at the bottom of the lungs called the diaphragm When you breathe in, the diaphragm
contracts. When it contracts it flattens out and pulls downward. This movement enlarges the space that the lungs are in. This larger space pulls air into the lungs. When you breathe out, the diaphragm expands reducing the amount of space for the lungs and forcing air out. The diaphragm is the main muscle used in breathing.
Nose -Inspiration and expiration usually occurs through the nose. The nose has main two functions: The cilia and hairs which line the nasal cavities trap dust and other foreign particles and the rich supply of blood surrounding the cavities warms the air before it enters the lungs.
Pharynx - allows for separation of food and air. The epiglottis closes the trachea when we eat and opens when we breathe.
Larynx - this structure sits on top of the trachea. Air rushing across two ligaments causes sounds that we shape into speech. Also called the voice box.
