The Heart and Soul of Lugo CF: Player Profiles and Stories - Puffin Foundation Resources
Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and birds. In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum.
Understanding the Context
[4] Heart is an American rock band formed in Seattle in 1967. The band evolved from previous projects led by the founding members Roger Fisher (guitar) and Steve Fossen (bass guitar), including The Army (1967–1969), Hocus Pocus (1969–1970), and White Heart (1970–1973). Electrical impulses make your heart beat, moving blood through these chambers. Your brain and nervous system direct your heart’s function.
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Key Insights
What is the function of the heart? Your heart’s main function is to move blood throughout your body. Blood brings oxygen and nutrients to your cells. Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life. human cardiovascular system, organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes.
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It is a closed tubular system in which the blood is propelled by a muscular heart. The heart’s ventricles, atria, and valves create a pump that maintains both high and low pressure to circulate blood from the heart to the body through your arteries and bring it back to the ...