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(invertebrate zoology)
The circulating fluid of the open circulatory systems of many invertebrates.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a fluid that circulates in the vessels and intercellular spaces of many invertebrates with an open system of blood circulation, such as arthropods and mollusks.

Hemolymph performs the same functions as blood and lymph in animals with a closed circulatory system (some worms, vertebrates). It transports oxygen and carbon dioxide, nutrients, and secretory products. It is rich in organic substances, including proteins, and frequently contains the respiratory pigments hemocyanin and hemoglobin. Hemolymph also contains cellular elements of various structure and function (phagocytes, excretory cells, and, in some cases, erythrocytes).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The concentrations of vitellogenin (vitellin) and protein in haemolymph, ovary and hepatopancreas in different ovarian stages of the freshwater prawn, Macrobrachium rosenbergii.
[50] have found another peptide from crab haemolymph of Ocypode macrocera that displayed double properties, antimicrobial activity, and antioxidant activity.
Glupov, "The effect of Habrobracon hebetor venom on the activity of the prophenoloxidase system, the generation of reactive oxygen species and encapsulation in the haemolymph of Galleria mellonella larvae," Journal of Insect Physiology, vol.
On the other hand, the haemolymph of larvae and surface extracts of both small larvae and eggs did not inhibit the growth of any tested microorganism.
It was measured by withdrawing a 500 [micro]l sample of haemolymph from arthrodial membrane at the base of the fourth walking legs.
Jones, "Effects of the model PAH phenanthrene on immune function and oxidative stress in the haemolymph of the temperate scallop Pecten maximus," Chemosphere, vol.
Changes in the haemolymph proteome of Spodoptera littoralis induced by the parasitoid Chelonus inanitus or its polydnavirus and physiological implications.
The beetles neither sting nor bite, but their haemolymph contains pederin, a potent toxin that causes blistering and Paederus dermatitis.
Such substances are mainly synthesised in fatty bodies, epithelial cells, and certain cells in the haemolymph and then become propagated via this throughout the whole body for contracting infection.
The effect of eyestalk ablation on haemolymph osmotic and ionic concentrations during acute salinity exposure in the freshwater shrimp Macrobrachium olfersii (Wiegmann) (Crustacea, Decapoda).