Heart Anatomy & Blood Flow Explorer

Trace blood through chambers and vessels, inspect wall differences and connect heart rate and stroke volume to cardiac output.

Model presets

Authored starting states

StudyVector model lab

Circulation cutaway

Model inputs: 3 inputs
Visible model layers: 3/3 layers
Model state: State-linked

Select a structure

Diagram or keyboard controls

Choose a labelled region to inspect its function and exam focus.

Timeline

0.00 cycle

Live model readout

Updates with every input

Cardiac output: 4.90 L/min
Cycle duration: 0.86 s
Cycle phase: 1.00
Selected flow step: 0.00

Curriculum map

AQA GCSE Biology
Organisation in Animals → Heart, blood and circulation
Edexcel GCSE Biology
Exchange and Transport in Animals → Heart, blood vessels and circulation

Model boundaries

The diagram is schematic and shows the patient's anatomical right on the viewer's left.
Cardiac output uses heart rate × stroke volume and assumes the selected values are stable averages.
Cycle phases are simplified into filling, ventricular systole and relaxation for revision.

StudyVector-authored cardiac anatomy and calculation model using the double-circulation pathway; mapped to the reviewed curriculum topics shown below.

Accessible text description

A cutaway schematic heart shows four chambers, the vena cava, pulmonary artery, pulmonary vein and aorta. Blue and orange paths distinguish deoxygenated and oxygenated routes, with numbered flow markers and visible left-ventricular wall thickness. Every structure is also available as a native selection button with function and exam-focus text. A one-cycle timeline highlights filling, ventricular systole and relaxation without requiring animation.