Breathing: Ventilation & Gas Exchange

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

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Luca

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#	Jugador	Acierto	tiempo
1	Luca 9 de Junio de 2026	% 95	05:47
2	Luca 6 de Febrero de 2026	% 61	05:56

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Completar Frases Breathing: Ventilation & Gas ExchangeVersión en línea Respiratory System, Mechanisms of Breathing, Gas Exchange and Alveoli and finally, smoking and its effects on the CV system and lungs. por Luca 1 trachea pleural bronchi protect muscles diaphragm bronchioles thorax intercostal alveoli 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 internal domes lung decreases rises muscles internal out inhalation external intercostal contract pushed Ventilation relaxes pressure ribs increases 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 carbon blue adapted one very red easily capillaries area surface alveoli dioxide arteries moist veins 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 narrows monoxide Carbon oxygen mucus haemoglobin raising elasticity carcinogen pressure Tar carboxyhaemoglobin bronchitis cholesterol emphysema coronary difficult 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 ExchangeVersión en línea

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

trachea pleural bronchi protect muscles diaphragm bronchioles thorax intercostal alveoli

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 .

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

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 .

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

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 .

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

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Sobre esta actividad

Creada por

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Ajuste de reacciones quimicas

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Past Simple

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Escribe las letras que faltan

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Uso de HA y A

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OPEN UP 4 - UNIT 3 GRAMMAR (Countable and uncountable nouns)

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Breathing: Ventilation & Gas ExchangeVersión en línea

por Luca

trachea pleural bronchi protect muscles diaphragm bronchioles thorax intercostal alveoli

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

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

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

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