1569321
Description
Flashcards by rimzy_yolo, updated more than 1 year ago
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Created by rimzy_yolo
about 10 years ago
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| Question | Answer |
| single circulation | deox blood to gills becomes oxygenated and travels to rest of the fish giving O2 to cells then goes to the heart |
| why double circulation is ideal for mammals/birds | - maintain constant body temp higher than surrounding -so lot of energy O2+food needed in cells -produces waste products which are removed quicker |
| whats double circulation | 2 circulatory systems - systematic circulation has oxygenated blood from heart to body using O2 then travels back to heart - pulmanory circulation has deox blood from heart to lungs picking up O2 back to heart |
| advantages of double circulatory system | -separates oxygenated and deox blood -delivers fully O2 blood to cells at high pressure -blood travels from lungs to heart to be pumped to cells at high pressure supplying O2 quicker |
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