Knowra Hemolymph Hemolymph Hemolymph is the circulating fluid of animals with open circulatory systems, where it leaves vessels and bathes organs directly. It transports nutrients, wastes, hormones, and immune cells.
Open circulatory system : A circulatory arrangement in which fluid leaves vessels and directly bathes organs in body spaces. Hemolymph is the circulating fluid that defines this arrangement.
Plasma (biology) : The liquid component of blood or hemolymph, containing water, ions, proteins, and dissolved substances. It is the fluid medium in which hemolymph cells and solutes are suspended.
Closed circulatory system : A circulatory arrangement in which blood remains within vessels as it travels through the body. Unlike hemolymph circulation, this system keeps its transport fluid within a vessel network.
Insect physiology : The study of how insects' bodies function, including their circulation, respiration, and regulation. Insects illustrate hemolymph circulation, which usually does not carry oxygen to tissues.
Hemocoel : The body cavity in many invertebrates that receives circulating hemolymph. Hemolymph flows through this space around internal organs.
Hemocyte : A blood cell of invertebrates that can participate in immunity, clotting, and wound repair. Hemocytes circulate within hemolymph and provide many of its cellular defenses.
Blood : A connective tissue that circulates through vessels in animals with closed circulatory systems. Blood and hemolymph share transport roles but differ in how they contact organs.
Crustacean : An arthropod group including crabs, lobsters, shrimp, and many other animals. Many crustaceans use copper-containing hemocyanin in hemolymph to transport oxygen.
Dorsal blood vessel : A longitudinal vessel that pumps hemolymph in many arthropods. It drives hemolymph through the body and into the hemocoel.
Osmoregulation : The regulation of water and dissolved-ion balance in an organism. Hemolymph composition reflects the animal's control of internal water and salts.
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