Features Helping Gas Exchange 0.0 / 5 ? BiologyRespiration and exerciseIGCSEAQA Created by: Nicole DCreated on: 19-12-13 10:04 Features Helping Gas Exchange 13 Questions 1 of 15 What are the 6 features in the body helping gas exchange occur? A respiratory surface ; A set of tubes ; A blood supply ; A ventilation system ; Pleural membranes ; Pleural fluid 2 of 15 Now explain what each of the following does + answer the questions . 3 of 15 A Respiratory Surface Membranes lining the alveoli in the lungs 4 of 15 What is another name for the alveoli? Air Sacs 5 of 15 A Set of Tubes Allow air from the outside to reach the respiratory surface ; C-shaped cartilage rings prevent walls of trachea and bronchus collapsing 6 of 15 What are the 5 tubes carrying the air? Pharynx ; Larynx ; Trachea ; Bronchus ; Bronchioles 7 of 15 A Blood Supply Carry dissolved gases to and from the respiratory surface 8 of 15 What 2 tubes carry the blood supply? Pulmonary artery and Pulmonary vein 9 of 15 A Ventilation System Keeps a good flow of air over the respiratory surface 10 of 15 What 2 things does the ventilation system consist of? The intercostal muscles and the diaphragm 11 of 15 Pleural Membranes Form an air-tight seal around the lungs 12 of 15 What are pleural membranes? 2 thin, moist membranes 13 of 15 Pleural Fluid Acts as a lubricant, so the surfaces of the lungs don't stick to the inside of the chest walls when we breathe 14 of 15 What is the pleural fluid and where is it found? A thin layer of liquid in the pleural cavity (the space between the 2 membranes) 15 of 15
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