What space the Lungs and Respiratory System?
The lungs and also respiratory system permit us come breathe. They lug oxygen right into our bodies (called inspiration, or inhalation) and also send carbon dioxide the end (called expiration, or exhalation).
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This exchange the oxygen and also carbon dioxide is dubbed respiration.
What room the parts of the respiratory System?
The respiratory system includes the nose, mouth, throat, voice box, windpipe, and also lungs.
Air start the respiratory mechanism through the nose or the mouth. If the goes in the nose (also dubbed nares), the air is warmed and humidified. Tiny hairs dubbed cilia (pronounced: SIL-ee-uh) protect the nasal passageways and other components of the respiratory tract, filtering out dust and other corpuscle that go into the nose through the breathed air.
The two openings the the airway (the nasal cavity and also the mouth) meet at the pharynx (pronounced: FAR-inks), or throat, at the earlier of the nose and mouth. The pharynx is part of the cradle system as well as the respiratory tract system since it carries both food and air.
At the bottom of the pharynx, this pathway divides in two, one for food — the stomach (pronounced: ih-SAH-fuh-gus), which leads to the stomach — and also the various other for air. The epiglottis (pronounced: eh-pih-GLAH-tus), a little flap that tissue, consist of the air-only passage once we swallow, maintaining food and liquid from going right into the lungs.
The larynx, or voice box, is the top component of the air-only pipe. This brief tube has a pair that vocal cords, which vibrate to do sounds.
The trachea, or windpipe, is the continuation of the airway below the larynx. The walls of the trachea (pronounced: TRAY-kee-uh) space strengthened by stiff ring of cartilage to save it open. The trachea is also lined through cilia, which sweep fluids and foreign particles out of the airway so that they continue to be out the the lungs.
At its bottom end, the trachea divides into left and also right waiting tubes dubbed bronchi (pronounced: BRAHN-kye), which affix to the lungs. Within the lungs, the bronchi branch into smaller bronchi and even smaller sized tubes referred to as bronchioles (pronounced: BRAHN-kee-olz). Bronchioles finish in tiny air sacs referred to as alveoli, wherein the exchange that oxygen and carbon dioxide actually takes place. Every person has hundreds of numerous alveoli in your lungs. This network of alveoli, bronchioles, and bronchi is known as the bronchial tree.
The lungs additionally contain elastic tissues that permit them come inflate and deflate without losing shape. They"re extended by a slim lining dubbed the pleura (pronounced: PLUR-uh).
The chest cavity, or thorax (pronounced: THOR-aks), is the airtight crate that homes the bronchial tree, lungs, heart, and other structures. The top and also sides that the thorax are formed by the ribs and also attached muscles, and also the bottom is developed by a huge muscle referred to as the diaphragm (pronounced: DYE-uh-fram). The chest walls kind a security cage around the lungs and other contents of the chest cavity.
How do the Lungs and also Respiratory system Work?
The cell in our bodies require oxygen to continue to be alive. Carbon dioxide is do in our bodies together cells perform their jobs.
The lungs and also respiratory system enable oxygen in the wait to be taken into the body, while additionally letting the body remove carbon dioxide in the waiting breathed out.
When you breathe in, the diaphragm move downward towards the abdomen, and also the rib muscles traction the ribs upward and also outward. This provides the chest cavity bigger and also pulls air v the sleep or mouth right into the lungs.
In exhalation, the diaphragm move upward and also the chest wall surface muscles relax, resulting in the chest cavity to get smaller and push air out of respiratory device through the sleep or mouth.
Every few seconds, with each inhalation, air fills a big portion the the millions of alveoli. In a procedure called diffusion, oxygen moves from the alveoli to the blood with the capillaries (tiny blood vessels) lining the alveolar walls. As soon as in the bloodstream, oxygen gets picked up by the hemoglobin in red blood cells. This oxygen-rich blood then flows ago to the heart, which pumps it with the arteries come oxygen-hungry organization throughout the body.
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In the small capillaries of the human body tissues, oxygen is freed from the hemoglobin and also moves right into the cells. Carbon dioxide, made by the cells as they perform their work, moves the end of the cells right into the capillaries, where most of it disappear in the plasma the the blood. Blood well-off in carbon dioxide then returns to the heart via the veins. From the heart, this blood is pumped come the lungs, where carbon dioxide passes into the alveoli to be exhaled.