Breathing: Ventilation & Gas Exchange

À propos de cette activité

Respiratory System, Mechanisms of Breathing, Gas Exchange and Alveoli and finally, smoking and its effects on the CV system and lungs.

Créé par

Luca

Spain

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#	Jeux	Précision	temps
1	Luca 9 Juin 2026	% 95	05:47
2	Luca 6 Février 2026	% 61	05:56

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Compléter Breathing: Ventilation & Gas ExchangeVersion en ligne Respiratory System, Mechanisms of Breathing, Gas Exchange and Alveoli and finally, smoking and its effects on the CV system and lungs. par Luca 1 protect bronchi alveoli diaphragm thorax intercostal trachea muscles pleural bronchioles The contains the ribs , which the lungs and heart . Between the ribs are the , which move the ribs to aid breathing . Below the lungs lies the , a dome - shaped muscle that contracts and flattens to change lung volume . Air travels down the and splits into the , which divide further into smaller . At the end of the bronchioles are tiny air sacs called , where gas exchange occurs . Surrounding the lungs are membranes , which reduce friction and allow smooth lung movement during breathing . 2 external inhalation rises increases internal muscles domes intercostal pressure Ventilation ribs decreases contract relaxes out internal lung pushed involves inhalation and exhalation . During , the diaphragm contracts and flattens , and the external intercostal muscles to pull the up and out , while the relax . This thoracic volume , reducing below atmospheric pressure and drawing air into the lungs . During exhalation , the diaphragm and upwards , the intercostal muscles relax , and the intercostal muscles contract to pull the ribs down and in . Thoracic volume , lung pressure above atmospheric pressure , and air is of the lungs . 3 moist capillaries area blue easily alveoli very one red dioxide arteries carbon veins surface adapted Gas exchange happens in the , where oxygen diffuses into the blood and diffuses out . Alveoli are highly for this process . They have a high to volume ratio , walls that are cell thick , and a dense network of . The alveolar surface is , helping gases to dissolve and diffuse more . Blood vessels are colour - coded in diagrams : carry deoxygenated blood ( ) and carry oxygenated blood ( ) , with pulmonary vein and pulmonary artery as exceptions . 4 carcinogen oxygen pressure haemoglobin cholesterol emphysema Carbon difficult elasticity raising coronary mucus bronchitis monoxide carboxyhaemoglobin narrows Tar lung Cigarettes contain harmful substances like tar , carbon monoxide , and nicotine . is sticky and a , increasing the risk of cancer . binds to , forming and reducing delivery . Nicotine blood vessels , blood and , increasing the risk of heart disease . Smoking also causes , where tar damages cilia and builds up , and , where alveoli lose , reducing the surface area for gas exchange and making breathing .

Compléter

Breathing: Ventilation & Gas ExchangeVersion en ligne

Respiratory System, Mechanisms of Breathing, Gas Exchange and Alveoli and finally, smoking and its effects on the CV system and lungs.

protect bronchi alveoli diaphragm thorax intercostal trachea muscles pleural bronchioles

The contains the ribs , which the lungs and heart . Between the ribs are the , which move the ribs to aid breathing . Below the lungs lies the , a dome - shaped muscle that contracts and flattens to change lung volume . Air travels down the and splits into the , which divide further into smaller . At the end of the bronchioles are tiny air sacs called , where gas exchange occurs . Surrounding the lungs are membranes , which reduce friction and allow smooth lung movement during breathing .

external inhalation rises increases internal muscles domes intercostal pressure Ventilation ribs decreases contract relaxes out internal lung pushed

involves inhalation and exhalation . During , the diaphragm contracts and flattens , and the external intercostal muscles to pull the up and out , while the relax . This thoracic volume , reducing below atmospheric pressure and drawing air into the lungs . During exhalation , the diaphragm and upwards , the intercostal muscles relax , and the intercostal muscles contract to pull the ribs down and in . Thoracic volume , lung pressure above atmospheric pressure , and air is of the lungs .

moist capillaries area blue easily alveoli very one red dioxide arteries carbon veins surface adapted

Gas exchange happens in the , where oxygen diffuses into the blood and diffuses out . Alveoli are highly for this process . They have a high to volume ratio , walls that are cell thick , and a dense network of . The alveolar surface is , helping gases to dissolve and diffuse more . Blood vessels are colour - coded in diagrams : carry deoxygenated blood ( ) and carry oxygenated blood ( ) , with pulmonary vein and pulmonary artery as exceptions .

carcinogen oxygen pressure haemoglobin cholesterol emphysema Carbon difficult elasticity raising coronary mucus bronchitis monoxide carboxyhaemoglobin narrows Tar lung

Cigarettes contain harmful substances like tar , carbon monoxide , and nicotine . is sticky and a , increasing the risk of cancer . binds to , forming and reducing delivery . Nicotine blood vessels , blood and , increasing the risk of heart disease . Smoking also causes , where tar damages cilia and builds up , and , where alveoli lose , reducing the surface area for gas exchange and making breathing .

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Breathing: Ventilation & Gas Exchange

Compléter

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Breathing: Ventilation & Gas ExchangeVersion en ligne

par Luca

protect bronchi alveoli diaphragm thorax intercostal trachea muscles pleural bronchioles

external inhalation rises increases internal muscles domes intercostal pressure Ventilation ribs decreases contract relaxes out internal lung pushed

moist capillaries area blue easily alveoli very one red dioxide arteries carbon veins surface adapted

carcinogen oxygen pressure haemoglobin cholesterol emphysema Carbon difficult elasticity raising coronary mucus bronchitis monoxide carboxyhaemoglobin narrows Tar lung

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