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Human Heart (Anatomy): Diagram, Function, Chambers ...

The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the....

Heart - Wikipedia

The human heart is in the middle of the thorax, with its apex pointing to the left. The human heart is situated in the middle mediastinum, at the level of thoracic vertebrae T5-T8. A double-membraned sac called the pericardium surrounds the heart and attaches to the mediastinum..

Human Heart: Anatomy, Function & Facts | Live Science

The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes..

Human Heart - Anatomy, Functions and Facts about Heart

The human heart is one of the most important organs responsible for sustaining life. It is a muscular organ with four chambers. The size of the heart is about the clenched fist. The human heart functions throughout a person’s lifespan and is one of the most robust and hardest working muscle in the human body..

heart | Structure, Function, & Facts | Britannica

In humans and other mammals and in birds, the heart is a four-chambered double pump that is the centre of the circulatory system. In humans it is situated between the two lungs and slightly to the left of centre, behind the breastbone; it rests on the diaphragm, the muscular partition between the chest and the abdominal cavity..