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Lungs & Cardiovascular system

Bio project

Dylan Samarasena

on 3 June 2011

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Transcript of Lungs & Cardiovascular system

Respiratory and Cardiovascular System The Nasal cavity is a air filled space behind and above the nose The Nasal Cavity Function: The Nasal Cavity's basic function is to clean and condition the air for the lungs, by cooling or heating the air to the body's temperture and by eliminating dust and other pathogens that might be harmful to the body. The Pharynx The pharynx is located behind the tongue at the back of the throat, it allows air to pass through the trachea. * It is also important to vocalization The Larynx The Larynx or more commonly reffered to as the voice box. Function: The Larynx is responsible for manipulating the pitch and volume of a voice, and its alternative use is protecting the trachea from food that can become lodged. The Trachea The Trachea or windpipe is a tube that connects to the pharynx and the larynx to the lungs. It also responsible for the flow of air. The Lung The lung is an essential respiratory organ in many air-breathing animals. Function: The function of the lungs is to take in and store the incoming oxygen from the right and left bronchi. Left and Right Bronchi The left and right bronchi deliver oxygen from the trachea down to the lungs. Bronchioles The Bronchioles are small airways branching out of the Bronchi. Alveoli Alveoli are tiny air sacs in the lungs. Function: The alveoli is where oxygen and carbon dioxide are switched in the blood, getting rid of the carbon dioxide and giving the oxygen to the red blood cells Lungs and the Cardiovascular system's interrelationship.. A Normal Heart works in harmony with the respiratory system. The Pulmonary Artery This artery is located at the base of the Right Ventricle, (which is where deoxygenated blood is pumped), therefore once the heart pumps the deoxygenated blood through the artery the blood is transported to the lungs where it is oxygenated. Function: The Right Ventricle Function: The right ventricle typically is responsible for the allowance of deoxygenated blood to flow in through the Pulmonary Artery to the lungs. The Left Ventricle Function: the Left Ventricle does basically the opposite of the right ventricle. rather than pumping deoxygenated blood, the left Ventrical's purpose is to receive blood that has been enriched with oxygen and pump it out to every area of the body. The Aorta Function: The Aorta is the largest artery in the body. it located at the base of the left ventricle. it branches out all the way down toward the abdomen. From the left ventricle there is a little flap called the Aortic Valve which opens once the heart is pumped and allows blood to flow through the aorta and it helps distribute blood all over the body. The Left Atrium Function: The left atrium of the heart is used to receive oxygenated blood and release toward the left Ventricle where it is transported to the Aorta where the blood is then carried off to every place in the body. The Right Atrium Function:

Whereas the right Atrium does the exact opposite- meaning that it receives deoxygenated blood and pumps it into the Right Ventricle where the deoxygenated blood is carried to the lungs where it is converted to Oxygen-enriched blood.
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