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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.
The heart is a muscular organ found in humans and other animals.This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2]
The motor system is the set of central and peripheral structures in the nervous system that support motor functions, i.e. movement. [1] [2] Peripheral structures may include skeletal muscles and neural connections with muscle tissues. [2]
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.
A health system, health care system or healthcare system is an organization of people, institutions, and resources that delivers health care services to meet the health needs of target populations.
In nonrelativistic classical mechanics, a closed system is a physical system that does not exchange any matter with its surroundings, and is not subject to any net force whose source is external to the system.
Scholarpedia is an English-language wiki-based online encyclopedia with features commonly associated with open-access online academic journals, which aims to have quality content in science and medicine.