Answer:
The upper respiratory system includes the nasal cavity (nose), the pharynx and larynx.
Explanation:
Air enters the body through the nose or mouth, this moistens and warms the air that enters since cold dry air will irritate the lungs. The air then travels down the voice box and down the windpipe.
U need carbohydrates they give you energy
Freestyle wrestling is a grappling style that is also practiced worldwide. This style of wrestling has links to “catch-as-catch-can” styles of wrestling, which involve using almost any technique to throw down and pin your opponent in order to win. Freestyle wrestling brings together the different traditional wrestling styles of sambo and judo.
The name “Greco-Roman” was used to purport that this style of wrestling is similar to styles used by ancient civilizations around the Mediterranean Sea, especially during the ancient Greek Olympics. Greco-Roman wrestling is practiced worldwide and was first part of the Olympic Games in 1896. It has continued to be part of the summer Olympics since 1908. Greco-Roman and freestyle wrestling have some key similarities but also differences. Both involve grappling with an opponent, takedowns, and turns with the aim of pinning an opponent. The major differences between these two styles of wrestling include the following One of the main differences between these two styles of wrestling is that Greco-Roman forbids any holds below the waist, but freestyle wrestling allows you to use your legs as both defensive and offensive weapons. You can also use a double leg or single leg takedown to pin your opponent to the mat. Because of this major difference, these two wrestling styles use vastly different strategies and techniques.
There are three different types that can cause it Type A B and D
Breathing In (Inhalation)
When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.
As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs).
Through the very thin walls of the alveoli, oxygen from the air passes to the surrounding capillaries (blood vessels). A red blood cell protein called hemoglobin (HEE-muh-glow-bin) helps move oxygen from the air sacs to the blood.
At the same time, carbon dioxide moves from the capillaries into the air sacs. The gas has traveled in the bloodstream from the right side of the heart through the pulmonary artery.
Oxygen-rich blood from the lungs is carried through a network of capillaries to the pulmonary vein. This vein delivers the oxygen-rich blood to the left side of the heart. The left side of the heart pumps the blood to the rest of the body. There, the oxygen in the blood moves from blood vessels into surrounding tissues.
(For more information on blood flow, go to the Health Topics How the Heart Works article.)
Breathing Out (Exhalation)
When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity.
As the space in the chest cavity gets smaller, air rich in carbon dioxide is forced out of your lungs and windpipe, and then out of your nose or mouth.
Breathing out requires no effort from your body unless you have a lung disease or are doing physical activity. When you're physically active, your abdominal muscles contract and push your diaphragm against your lungs even more than usual. This rapidly pushes air out of your lungs.
The animation below shows how the lungs work. Click the "start" button to play the animation. Written and spoken explanations are provided with each frame. Use the buttons in the lower right corner to pause, restart, or replay the animation, or use the scroll bar below the buttons to move through the frames.
