CIRCULATORY SYSTEMS AND BLOOD VESSELS 0.0 / 5 ? BiologyTransport in animalsASOCR Created by: JimanthaPickensCreated on: 27-03-20 15:22 Space in the middle of blood vessels that allow blood to flow lumen 1 of 14 Controls the size of the lumen when it contracts or relaxes smooth muscle 2 of 14 Contains valves to prevent blood flowing backwards veins 3 of 14 Responsible for the exchange of substances between the cells and its walls capillaries 4 of 14 Can stretch and recoil, allowing arteries to withstand the high pressure blood elastic fibres 5 of 14 Links arteries to capillaries and control the blood flow to individual organs arterioles 6 of 14 Transports high pressure blood away from the heart arteries 7 of 14 Mostly found in insects and molluscs open circulatory system 8 of 14 Where the blood of most insects and some molluscs travels to after being pumped from the heart haemocoel 9 of 14 Blood never leaves the vessels; no direct contact with body cells closed circulatory system 10 of 14 Blood only travels through the heart once for each complete circuit single closed circulatory system 11 of 14 Blood travels through the heart twice for each circuit double closed circulatory system 12 of 14 Insect blood; doesn't contain oxygen or carbon dioxide haemolymph 13 of 14 Why are bony fish still so active despite having a single closed circulatory system counter current exchange system 14 of 14
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