haemocoel

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he·mo·cele

(hē'mō-sēl)
The system of interconnected spaces within the bodies of arthropods containing blood or hemolymph.
Synonym(s): haemocoel, haemocoele.
[hemo- + G. koilōma, cavity]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Haemocoelclick for a larger image
Fig. 186 Haemocoel .

haemocoel

the body cavity within many invertebrates, including arthropods and molluscs, which is an expansion of part of the blood system. In contrast with the COELOM, the haemocoel never opens to the exterior nor does it contain germ cells.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005