Anaesthetic Physiology
Interactive
Teaching Tools

Browser-based physiology visualisations for doctors, trainees, and medical students.

Developed by Dr Edward J.H Kim
Physiology
Interactive
Arterial Pressure Waveform
The PV loop unrolled into time. Annotated waveform features with live SBP, DBP, pulse pressure and MAP. Each state linked back to its PV loop equivalent.
SVR Cardiac Output Dicrotic Notch Windkessel Arterial Line
Open
Interactive
Cardiac Action Potential
Interactive action potential with phase-by-phase ionic physiology. Includes fast response (ventricular) and slow response (nodal) waveforms. Vaughan Williams antiarrhythmic classes mapped to the phases they target.
Action Potential Ion Channels Antiarrhythmics Vaughan Williams
Open
Interactive
Pressure-Volume Loop
How the cardiac cycle changes across physiological and pathological states. Clickable phases, live stats, ESPVR and EDPVR reference lines.
Preload Afterload Contractility Frank-Starling Heart Failure
Open
Pathophysiology
Interactive
Cardiac Murmurs
Interactive murmur timeline across the cardiac cycle. Click any murmur to explore its waveform shape, auscultation features, chamber burden, overload type, causes, and manoeuvre effects.
Auscultation Murmurs Valvular Disease Manoeuvres
Open
Notes
Heart Failure
Mechanisms, classification, compensatory cascades, Starling curve, and drug rationale. HFrEF vs HFpEF, left vs right, RAAS and SNS compensation.
HFrEF HFpEF Frank-Starling RAAS Compensatory Mechanisms
Open
Interactive
Myocardial Infarction Timeline
Step-through timeline from occlusion to mature scar. Gross appearance, microscopic findings, and complications at each stage with a full complication Gantt chart.
Coagulative Necrosis Wavefront Complications Dressler Syndrome
Open
Physiology
Coming V/Q mismatch, dead space, compliance curves, hypoxic pulmonary vasoconstriction
Physiology
Coming Fluid compartments, acid-base, electrolyte physiology
About
Built by an FY1 doctor alongside preparation for anaesthetic training. Each topic here is one worth understanding from first principles - the kind of understanding that sticks, not the kind that gets you through an exam and disappears. These started as personal study tools. If they're useful to others, all the better.
For whom
For anyone wanting to understand physiology properly - whether consolidating knowledge for clinical practice or preparing for postgraduate exams including the MSRA, FRCA, and USMLE. All tools run entirely in the browser - no account, no download.