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In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. [1] [2] It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels (from Greek kardia meaning heart, and Latin vascula meaning vessels).
Cerebral circulation is the movement of blood through a network of cerebral arteries and veins supplying the brain.The rate of cerebral blood flow in an adult human is typically 750 milliliters per minute, or about 15% of cardiac output.
Because of the open circulatory system of gastropods and other molluscs, there is no clear distinction between the blood and the lymph, or interstitial fluid.As a result, the circulatory fluid is commonly referred to as haemolymph, rather than blood.
Dendrobranchiata is a suborder of decapods, commonly known as prawns.There are 540 extant species in seven families, and a fossil record extending back to the Devonian.They differ from related animals, such as Caridea and Stenopodidea, by the branching form of the gills and by the fact that they do not brood their eggs, but release them directly into the water.
Erasistratus (/ ˌ ɛ r ə ˈ s ɪ s t r ə t ə s /; Ancient Greek: Ἐρασίστρατος; c. 304 – c. 250 BC) was a Greek anatomist and royal physician under Seleucus I Nicator of Syria.
Ilya Ilyich Mechnikov (Russian: Илья Ильич Мечников; 15 May [O.S. 3 May] 1845 – 15 July 1916), also spelled Élie Metchnikoff, [2] [note 1] was a ...