Heart

Definition

The heart is a muscular organ responsible for pumping blood throughout the body via the circulatory system. It supplies oxygen and nutrients to tissues and removes carbon dioxide and other wastes.

5 Must Know Facts For Your Next Test

1. The heart has four chambers: two atria and two ventricles.
2. Endocarditis is an infection of the inner lining of the heart chambers and valves.
3. Myocarditis refers to inflammation of the heart muscle, often caused by viral infections.
4. Pericarditis is inflammation of the pericardium, the fluid-filled sac surrounding the heart.
5. Sepsis can lead to severe complications in the heart, including endocarditis and myocarditis.

Review Questions

• What are the four chambers of the heart?
• How does endocarditis affect the heart?
• What causes myocarditis?

Related terms

Aorta: The largest artery in the body that carries oxygenated blood from the heart to be distributed by branch arteries through the body.

Lymphatic System: A network of tissues and organs that help rid the body of toxins, waste, and other unwanted materials.

Sepsis: A life-threatening condition caused by an overwhelming immune response to infection, which can affect multiple organs including the heart.