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Earth Studies Forces Experimental Design Respiratory System
 * Year 8 Science 2012 **
 * All Systems Go! **



The lung has branches that contain tubes and air sacs. Oxygen and Carbon Dioxide enters through the nose and mouth which leads to the throat, then the trachea which carries the air to the chest. The trachea is split into two major bronchi leading one to each lung. The bronchi end up splitting into smaller and smaller tubes that leads to many alveoli. These alveoli are surrounded by capillaries. The air enters the capillaries and alveoli and Carbon Dioxide is leaves the lung when you exhale.
 * Explain how air enters and exists the lungs. **

The alveoli are the very small air sacs air goes when breathed in. Each single alveolus is surrounded by a network or capillaries and are composed of a single layer of epithelial tissue. They are considered a very important function within the lung. Gas exchange takes place at the alveolus, and oxygen enters the blood and carbon dioxide leaves the blood.
 * Describe the process that occurs inside an alveolus **.


 * How about watching a video that sums up the process that occurs inside an alveolus and how the air enters and exits our lungs. **
 * Human Body Fun Facts **

The Following link will describe Gas Exchange and how it really works [] **Australian Scientists Research** **Dr. Victor Chang** media type="custom" key="20660997"
 * Gas Exchange **

** Sports Physio **
==== A sports physiotherapist, also sometimes known as a sports physical therapist or an athletic trainer, works with athletes, to minimize and treat sports-related injuries. The job usually involves educating athletes to prevent injuries, assessing and treating injuries during training sessions and competitions, and meeting with coaches and physicians to discuss athletes’ training progress and physical fitness. They must normally hold a minimum of an undergraduate degree in a relevant area. One of the most important parts of the sports physiotherapist’s job is preventing injury among his clients. To minimize injuries, the sports physiotherapist typically spends a significant amount of time educating his clients about how to use training machines safely, how to stretch the muscles following workouts, and so forth. Following competitive events and training sessions, the physiotherapist may also perform therapeutic treatments, such as administering massages or ice baths, to encourage proper recovery of the muscles and bones prior to the next competition or practice session. ====

** Nurse **
==== Nurses, also called registered nurses or RNs, take care of sick and injured people. They give people medicine. They treat wounds. And they give emotional support to patients and their families. Nurses ask patients about their symptoms and keep detailed records. They watch for signs that people are sick. Then, nurses help doctors examine and treat patients. Some nurse’s help to give tests to find out why people are sick. Some also do lab work to get test results. Nurses also teach people how to take care of themselves and their families. Some nurses teach people about diet and exercise and how to follow doctors' instructions. Some nurses run clinics and immunization centres. Nurses can focus on treating one type of patient, such as babies or children. They can also focus on one type of problem. Some focus on helping doctors during surgery. Others work in emergency rooms or intensive care units. Many nurses work in doctors' offices. They help with medical tests, give medicines, and dress wounds. Some also do lab and office work. Nurses care for people who have diseases that they can catch. Nurses can get hurt while helping to move patients. Nurses also need to guard against radiation from x-rays and chemicals in medicine. ====

Adaptation
 * Ecology **

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=**Microorganisms Video !**=

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