7372769
Description
Flashcards by Anton Griffith, updated more than 1 year ago
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Created by Anton Griffith
over 7 years ago
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| Question | Answer |
| Biology B3 | The Respiratory system |
| Inhaling | The diaphragm contracts and flattens |
| Intercostal muscles | Contracts |
| Ribs | The raise and expand out |
| Pressure in lungs | Decreases |
| Exhaling | The diaphragm relaxes and domes |
| Intercostal mucscles | Relaxes |
| Ribs | Retreat down and inwards |
| Pressure in lungs | Increases |
| circulatory system | Labelling the heart |
| Which vessel contains veins and why? | The veins contain vessels and its to prevent the back flow of blood. |
| 3 Components of blood and their uses | Red blood cells-Transports oxygen White blood cells-The bodies defence mechanism Platelets-helps blood clotting |
| what form is oxygen transported to tissues and how is it released? | Oxygen combines with haemoglobin and forms oxyhaemoglobin that then gets split when it reaches the tissue |
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