Components of the heart and respiratory system 0.0 / 5 ? BiologyHuman, animal and plant physiologyASAQA Created by: AlexLaceyCreated on: 24-12-15 11:20 Blood enters here through the vena cava Right atrium 1 of 20 Blood enters here through the pulmonary vein Left atrium 2 of 20 Carries deoxygenated blood back from the tissues of the body to the heart Vena cava 3 of 20 Carries oxygenated blood back from the lungs to the heart Pulmonary vein 4 of 20 Valve that separates the right atrium from the right ventricle tricuspid valve 5 of 20 Valve that separates the left atrium from the left ventricle biscupid/mitral valve 6 of 20 Carries oxygenated blood from the heart to the rest of the body (except the lungs) Aorta 7 of 20 Carries deoxygenated blood from the heart to the lungs Pulmonary artery 8 of 20 Separates the left and right sides of the heart Septum 9 of 20 Air enters the body through... The nostrils 10 of 20 Air moves through the the nostrils and into the... Nasal cavities 11 of 20 From the nasal cavity, air moves down into the... Pharynx 12 of 20 Air moves through the pharynx and into the... Larynx 13 of 20 From the larynx, air moves into the... Trachea 14 of 20 Once air has moved through the trachea, it flows through either... Primary bronchi 15 of 20 The primary bronchi then narrow into the... Secondary bronchi 16 of 20 Air moves through the secondary bronchi, which divide and narrow into the... Bronchioles 17 of 20 Air moves from the bronchioles, which divide even further, ino the... Alveolar ducts 18 of 20 The alvelolar ducts end in... Alveolar sacs 19 of 20 It is here that the exhange of oxygen and carbon dioxide occurs; alveolar sacs are made up of several... Alveoli 20 of 20
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