The Human Respiratory System
The respiratory system in our body is very important in our lives because the body needs oxygen to live and function appropriately. It is responsible for supplying our body with oxygen and it does this by enriching blood with oxygen every time we take a breath. It also removes carbon dioxide, which is a waste gas produced by the functions of the body, and other harmful and useless gases. The body parts of the respiratory system are the mouth, nose, trachea, lungs and diaphragm. Each of these parts plays a crucial role in how the human respiratory system works.
First, we inhale oxygen into our respiratory system through the mouth or nose. Then the oxygen goes through the larynx, the top part of the passage that leads from your throat to your lungs, and down the trachea, the windpipe, into the two bronchi, which are branch-like tissues that enter the lungs. Cilia, which are very fine hairs that grow in the larynx, trachea, and bronchi. These hairs capture germs and pollution in the air that we breathe before they enter the lungs. Germs and pollution are then emitted out of the body through swallowing, coughing or sneezing.
After the oxygen enters the lungs, it is delivered to the rest of the body's organs and tissues through a network of blood vessels. The another function of these blood vessels is capturing carbon dioxide emitted by the tissues as a metabolic waste. The lungs, where all the air exchange takes place, are made up of bronchioles, small tubes that have alveoli at their tips. Alveoli are very small lung sacs made up of capillaries, which are tiny blood vessels in the body.
Blood is delivered around the body through a network of arteries, veins and blood vessels. The pulmonary artery delivers oxygen and removes carbon dioxide. It sends blood carrying carbon dioxide to the alveoli, which expel the gas through exhalation. Then the alveoli replace the carbon dioxide with oxygen through inhalation. Then finally, this oxygen rich with blood travels to the heart, which pumps it to the rest of the body.
Respiration is the way of breathing in and out. As we breathe in, our chest muscles lift the ribs out and moves the diaphragm down, expanding our chest cavity. This expansion decreases the air pressure in lungs and fill them with air. As we breathe out, this process is reversed. The lungs let the air containing waste and foreign matter out from our bodies. In this way, we are able to live with oxygen.
Wow I was so surprised about the fact that this writing is so tecnical!! You certainly did so many research! Your detailed description pleased me very much because I could feel your passion toward this essay. Also I loved your full introduction. The ideas in your intro flow so smooth.
ReplyDeleteYour main point seems to be "the way the human respiratory system works".
There is nothing that I don't understand. But since you put many tecnical words in your essay, I had to look up the dictionary very often, although you explained these words in your writing. But I understand that these words are essential to explain human respiratory system, so that's fine! Great job!!!
The Human Respiratory System
ReplyDeleteThe respiratory system in our body is very important in our lives because the body needs oxygen to live and function appropriately. It is responsible for supplying our body with oxygen and it does this by enriching blood with oxygen every time we take a breath. It also removes carbon dioxide, which is a waste gas produced by the functions of the body, and other harmful and useless gases. The body parts of the respiratory system are the mouth, nose, trachea, lungs and diaphragm. Each of these parts plays a crucial role in how the human respiratory system works.
First, we inhale oxygen into our respiratory system through the mouth or nose. Then the oxygen goes through the larynx, the top part of the passage that leads from your throat to your lungs, and down the trachea, the windpipe, into the two bronchi, which are branch-like tissues that enter the lungs. Cilia, which are very fine hairs that grow in the larynx, trachea, and bronchi. These hairs capture germs and pollution in the air that we breathe before they enter the lungs. Germs and pollution are then emitted out of the body through swallowing, coughing or sneezing.
After the oxygen enters the lungs, it is delivered to the rest of the body's organs and tissues through a network of blood vessels. The another function of these blood vessels is capturing carbon dioxide emitted by the tissues as a metabolic waste. The lungs, where all the air exchange takes place, are made up of bronchioles, small tubes that have alveoli at their tips. Alveoli are very small lung sacs made up of capillaries, which are tiny blood vessels in the body.
Oxygen is delivered around the body through a network of arteries, veins and blood vessels. The pulmonary artery delivers oxygen and removes carbon dioxide. It sends blood carrying carbon dioxide to the alveoli, which expel the gas through exhalation. Then the alveoli replace the carbon dioxide with oxygen through inhalation. Then finally, this oxygen rich with blood travels to the heart, which pumps it to the rest of the body.
Respiration is the way of breathing in and out. As we breathe in, our chest muscles lift the ribs out and moves the diaphragm down, expanding our chest cavity. This expansion decreases the air pressure in lungs and fill them with air. As we breathe out, this process is reversed. The lungs let the air containing waste and foreign matter out from our bodies. In this way, we are able to live with oxygen.