Circulatory+System+&+Muscular+System

=**//__Circulatory System__//**= ===Circulatory system is a system consisting of the heart, blood vessels, and lymph vessels that pumps blood and lymph around the body. The Heart is a hollow muscular organ that pumps blood around the body. Veins are a blood vessel that carries blood to the heart. Arteries are a blood vessel that is part of the system carrying blood under pressure from the heart to the rest of the body. Blood is a red fluid that is pumped from the heart and circulates around the bodies of humans and other vertebrates.===



=**//__Muscular System__//**= ===Muscular system is a system containing muscles, which allows organisms to move around. Muscular system consist of skeletal muscles, smooth muscles, and cardiac muscles. Skeletal muscle isthe type of muscle which powers movement of the skeleton. Examples would be walking and lifting. Smooth muscle is a muscle found in the Viscera. It functions by slow contractions and it's made up of layers of spindle-shaped cells lacking cross striations. Finally, the Cardiac muscle which is the muscle of the heart. It is composed of striated and involuntarey muscle fibers. This compromises the chief component of the Myocardium and lining the walls of the adjoining large vessels.===



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