(redirected from Haemolymph)
Also found in: Dictionary, Medical, Wikipedia.
Related to Haemolymph: hemolymph


(invertebrate zoology)
The circulating fluid of the open circulatory systems of many invertebrates.



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).

References in periodicals archive ?
The aims of this study were to determine a correlation between water acidification and ion levels in the haemolymph and to examine the physiological response and ion change of the haemolymph of odonate nymphs to acidic conditions in the laboratory.
Ten hours after injection the survival rate, haemolymph samples from five shrimps per aquarium for total count of haemocytes, phenoloxidase activity and serum agglutinate titre were collected, as well as samples of hepatopancreas and haemolymph for microbiological analysis (Vibrio ssp.
Haemolymph flagellates from naturally infected triatomines were maintained using the same protocol.
Growth, survival, haemolymph osmolatity and organosomatic indices of the western king prawn (Penaeus latisulcatus Kishinouye, 1896) reared at different salinities.
Furthermore, when insects are exposed to below-freezing temperatures, the haemolymph becomes concentrated by formation of ice until the vapor pressure of the liquid fraction equals that of ice at the same temperature.
The higher AAT activity showed that the diversion of aspirate amino acid towards tissue oxidations rather than efflux into haemolymph.
Effect of PGF on the organic constituents of Haemolymph of silkworm larvae, Bombyx mori (L).
Single and combined effects of heavy metals and hormones on lysosomes of haemolymph cells from the mussel Mytilus galloprovincialis.
Originating in Asia, the varroa mite was first discovered in the UK during 1992 and feeds on the haemolymph of honeybee pupae and adults.
The antibodies will then float around in the prawns' haemolymph (body fluid) and neutralise the hormone.
Lysozyme activity and protein concentration in the haemolymph of the flat oyster Ostrea edulis (L.
Roles of haemolymph proteins in antimicrobial defences of Manduca sexta, pp.