The Respiratory System

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The Respiratory System

By | October 2012
Page 1 of 6
The
Respiratory
System
[pic]

BY: Dimitri Katwaroo
Class: 718
What is the Function of the Respiratory System?

The human body is made up of many different organs and organ systems. The digestive, circulatory, immune, excretory, and nervous systems are these organ systems. The respiratory system is one of the most important systems in your body. It is responsible for breathing in oxygen and disposing of wastes in your body. Breathing is when your chest moves and it brings air into your lungs and removes waste gases. When air enters your lungs it moves to the circulatory system because the blood has less oxygen when it enters lungs than in the cells of the lungs. Oxygen and glucose is carried by blood from digested food to individual cells. They are raw materials used in the cells for chemical reactions called cellular respiration. As a result of cellular respiration, energy is released from glucose. This energy is used by the body to carry out different functions. Water and carbon dioxide are the waste products of cellular respiration. Blood carries the waste products back to the lungs. Exhaling can dispose of carbon dioxide and some water molecules.

The respiratory system is made up of many structures and organs that help get oxygen into your body and waste gases out. Your nose and mouth can be used to inhale air. In your nose, there are hairs and mucus that can help filter and clean the air you breathe before it gets to the lungs. Then, Cilia (Similar to tiny hairs) move mucus and trapped material to where it can be swallowed. Moist air then enters your pharynx (a part of your throat). The epiglottis is a flap at the end of the pharynx that closes in order to guide the air into your airway. The epiglottis also helps to keep food out of your lungs. The air then begins to move through your larynx, also known as your vocal cords. The larynx makes it possible for you to be able to speak. When air is forced between the vocal cords, they vibrate...