Structure and Function of the Heart | 合法醫療器材資訊網

Asacentralpartofthecirculatorysystem,theheartisprimarilyresponsibleforpumpingbloodanddistributingoxygenandnutrientsthroughoutthebody.

As the central part of the circulatory system, the heart is responsible for pumping blood, supplying oxygen and nutrients, and removing metabolic waste such as carbon dioxide from all the tissues in the body. The heart and a network of arteries and veins comprise the cardiovascular system.

The heart is a vital organ of the body; therefore, minute dysfunctions or abnormalities in the heart may have drastic consequences on human health. Typically, the heart is the size of an adult fist and is found enclosed in a pericardial sac at the chests center, tilted to the left, and underneath the sternum in a thoracic compartment.

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The heart consists of four chambers, four one-way valves, and a set of arteries and veins that regulate the normal flow of blood within the body.

The smooth functioning of the circulatory system is maintained by a complex network of blood vessels that...