Coronary heart disease sim
Grow a fatty plaque in a coronary artery on a heart teaching model with risk-factor sliders, watch blood flow to the heart muscle fall, let a clot cause a heart attack, and drag a catheter to put in a stent.
Transport in humans · covers the O-Level, IGCSE, GCSE topic
What the sim shows
Model: a fatty plaque grows in the left coronary artery's front branch at 0.5 to 2.35 percentage points of narrowing a year, set by the risk factors (halved by a statin), from age 20. The most flow when the heart works hard falls from about 50 % narrowing; resting flow holds until about 85 % (illustrative curves). A clot stops the flow; muscle starts to die after about 20 minutes. All values illustrative, not medical advice. Front view: the patient's left is on the right of the page. Not to scale.
- The catheter tip carrying a stent: drag it along the arteries
- Raised tubes: the coronary arteries, with oxygenated blood (bright red, never blue)
Use it in your lessons
- Try it here: anyone can unlock 2 figures free, and a free account unlocks up to 5. Runs on a laptop, a Chromebook or a phone; nothing to install.
- Present it and share student links with the teacher plan, from US$5 a month, billed yearly.
- Put it on your own website or LMS for US$9, paid once, or every sim from US$29 a month.
Free guide: 12 practicals as sims, and how to run one in a lesson →
Need a version for your exact set-up? Have one made: US$49 a figure in an order of 5.
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