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Video encyclopedia

Heart

2:42

Heart 101 | National Geographic

8:57

Transporting a beating heart for transplant - TechKnow

1:30

Organs Family & Diabetes: Healthy Heart

6:19

The Human Heart for Kids

4:21

Heart in a Box: UCLA patient's life-saving donor heart arrives 'warm and beating' inside box

The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, as well as assists in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest.
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  • Location and shape 

  • Chambers 

  • Valves 

  • Right heart 

  • Left heart 

  • Wall 

  • Pericardium 

  • Coronary circulation 

  • Nerve supply 

  • Development 

  • Blood flow 

  • Cardiac cycle 

  • Cardiac output 

  • Electrical conduction 

  • Heart rate 

  • Influences 

  • Diseases 

  • Ischaemic heart disease 

  • Heart failure 

  • Cardiomyopathies 

  • Valvular heart disease 

  • Cardiac arrhythmias 

  • Pericardial disease 

  • Congenital heart disease 

  • Diagnosis 

  • Examination 

  • Heart sounds 

  • Blood tests 

  • Electrocardiogram 

  • Imaging 

  • Ancient 

  • Pre-modern 

  • Modern 

  • Symbolism 

  • Food 

  • Vertebrates 

  • Double circulatory systems 

  • Full division 

  • Fish 

  • Invertebrates