NEET Biology · Interactive 3D

Anatomy Studio

  • Aorta: Largest artery; carries oxygenated blood from the left ventricle to the whole body.
  • Left atrium: Receives oxygenated blood from the lungs through the pulmonary veins.
  • Right atrium: Receives deoxygenated blood from the body through the venae cavae.
  • Left ventricle: Thickest chamber; pumps oxygenated blood into the aorta at high pressure.
  • Right ventricle: Pumps deoxygenated blood into the pulmonary artery to reach the lungs.
  • Bicuspid (mitral) valve: Two-flap valve between the left atrium and ventricle; stops backflow.
3D specimen · click a dot to exploreCor
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Learning is
an act of curiosity.

Keep exploring!
Microscopic view

Cardiac muscle (myocardium)

Compare organs

Heart vs. brain

Function animation

Pumps blood through double circulation

Clinical notes

Common conditions

  • Double circulation (NEET favourite)
  • SA node = pacemaker
  • Bicuspid vs tricuspid valves
  • Purkinje fibres & AV node
  • Cardiac output = SV × HR
  • 'lub–dub' heart sounds
  • Coronary artery disease
  • Angina pectoris
Where it works

Circulatory System