| 11. | As a result, the circulatory fluid is commonly referred to as haemolymph, rather than blood.
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| 12. | However, the haemolymph does contain amoebocytes, which may have a role in the immune system.
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| 13. | The aorta, which supplies haemolymph to the cephalothorax, extends from the anterior end of the heart.
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| 14. | These extract the waste products from the haemolymph, in which all the internal organs are bathed ).
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| 15. | Movement of haemolymph is particularly important for thermoregulation in orders such as Odonata, Lepidoptera, Hymenoptera and Diptera.
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| 16. | The bee organ is cone shaped branching out from its nerve and almost obstructs haemolymph flow through the limb.
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| 17. | In other species with more flexible duct walls, changes in pressure of the surrounding haemolymph may be involved.
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| 18. | The adult butterfly emerges ( ecloses ) from this and expands its wings by pumping haemolymph into the wing veins.
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| 19. | It is produced in the midgut glands and secreted into the haemolymph, whence it is transported to the eggs.
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| 20. | The veins carry haemolymph which is pumped in at the time of emergence from the nymphal stage to expand the wings.
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