lungs and gaseous exchange 0.0 / 5 ? Biologylungs and gaseous exchangeGCSEAQA Created by: MaxR1Created on: 13-02-17 16:59 Describe ventilation The movement of air into and out of the lungs 1 of 13 Describe gas exchange The 'swapping’ of gases between the alveolar air and the blood 2 of 13 Where are the lungs located Within the upper part of your body called the thorax 3 of 13 What is the diaphragm The muscular sheet beneath the lungs 4 of 13 What does the diaphragm do? It separates the lungs from the abdomen of the body and also plays a role in ventilating the lungs. 5 of 13 What happens to air in the lungs? Air is firstly warmed, moistened and filtered as it travels through the mouth and nasal passages. 6 of 13 Where does the air travel after traveling through the mouth and nasal passages?? It passes through the trachea and down one of the two bronchi and into one of the lungs. 7 of 13 What are the Bronchi? The 2 major air tubes in the lungs, they divide into smaller tubes called bronchioles 8 of 13 What are Alvioli? Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream 9 of 13 Give the percentage of inhaled and exhaled of oxygen 21% Inhaled 16% Exhaled 10 of 13 Give the percentage of inhaled and exhaled of Carbon Dioxide 0.04% Inhaled 4% Exhaled 11 of 13 Give the percentage of inhaled and exhaled of Nitrogen 79% Inhaled 79% Exhaled 12 of 13 What is Haemoglobin? haemoglobin: The red protein found in red blood cells that transports oxygen round the body. 13 of 13
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