Visual explanationFree resource
Visual medical education by Armando Hasudungan
Medical science, drawn into focus.
Explore visual explanations that reveal how the facts, processes and clinical patterns fit together—then discover the coming AH study platform, built to guide what you study next and check what stuck.
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Clear visual explanations used by medical and allied-health learners around the world.
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Rhinosinusitis
Overview Rhinosinusitis is one of the more prevalent chronic illnesses worldwide, affecting individuals of all ages. It is an inflammatory process that involves the nose and paranasal sinuses. Rhinosinusitis may be acute or chronic. Chronic rhinosinusitis can be subject to acute exacerbations. Rhinitis: Irritation and inflammation of the mucosa lining the nasal cavity Sinusitis: Inflammation…
View topic ↗Obstructive Sleep Apnoea
Overview Sleep apnea syndrome is an extremely common medical disorder associated with important morbidity. Sleep Apnea and can be classified as: Obstructive Sleep Apnea – is the most common, characterized by repetitive, intermittent collapse of the upper (pharyngeal) airway during sleep, which causes apnoeic episodes terminated by partial arousal Central Sleep Apnea - characterised by repetitive absent or diminished…
View topic ↗Otitis Externa
Overview Acute otitis externa (AOE) is a common ear condition seen in the primary health care setting. Also known as ‘swimmer’s ear’ or ‘tropical ear’, it is prevalent in hot humid climates. AOE is an inflammatory condition of the ear canal skin. The causes are infective or non-infective. Otitis externa: Inflammation of the outer ear…
View topic ↗Junctional Arrythmias
Overview Junctional rhythms occur when the AV node takes over as the primary pacemaker. Junctional rhythm usually is associated with a benign course. Mechanism SA node has failed AV node just wants to be faster and takes over Enhanced automaticity in AV nodal cells AVNRT – Seperate condition where a re-entry loop stimulates the AV node…
View topic ↗Cardiac Arrest (including post-arrest care)
Overview Cardiac arrest is a state of circulatory failure due to a loss of cardiac systolic function. It is the result of 4 specific cardiac rhythm disturbances: Ventricular fibrillation Pulseless ventricular tachycardia Pulseless Electrical activity Asystole Epidemiology Survival is estimated at <20% for patients presenting out-of-hospital with VF, and <10% overall for patients presenting with…
View topic ↗Septic Arthritis
Overview Septic arthritis refers to infection in a joint; it is usually caused by bacteria but can be caused by fungi or mycobacteria. Septic arthritis due to bacterial infection is often a destructive form of acute arthritis. Arthritis: Inflammation of joint Arthrosis: Degeneration of joint Septic Arthritis: Infection of joint Pathophysiology Septic arthritis involves bacterial…
View topic ↗Community Acquired Pneumonia
Overview Community acquired pneumonia occur in individuals who are not in hospital (or have been in hospital in the past 48 hours) and who are not significantly immunocompromised. The World Health Organization estimates that lower respiratory tract infection is the most common infectious cause of death in the world. Choice of antibiotics are usually empirical…
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01 / WATCH02 / READ03 / SEE04 / CHECK
Videos
Hand-drawn explanations that build the big picture as the concept unfolds.
Notes
Clear written explanations for review, reference and filling in the details.
Diagrams
Visual snapshots that help you easily review topics.
Questions
Test whether the explanation stayed with you—not just whether it looked familiar.
Good places to begin
Explanations learners return to.
Immunology – Innate Immunity (MHC processing)
Explore MHC antigen processing pathways in this immunology video, detailing how endogenous and exogenous antigens are presented via MHC Class I and II. Essential for understanding T cell activation, this video simplifies key steps like proteasomal degradation, peptide loading, and transport mechanisms.
Hypothalamic Pituitary Thyroid Axis (regulation, TRH, TSH, thyroid hormones T3 and T4)
Understand the Hypothalamic-Pituitary-Thyroid (HPT) axis and how it regulates thyroid hormone production through TRH and TSH signaling. This video explains the feedback loop involving T3 and T4, highlighting the physiological control of metabolism and thyroid function.
Emphysema – Pathophysiology (COPD)
Understand the pathophysiology of emphysema, a form of COPD, focusing on the destruction of alveolar walls and loss of elastic recoil in the lungs. This video explains how these changes impair airflow, trap air in the lungs, and contribute to progressive respiratory symptoms.
Our mission
Medical science is complex. Understanding it should feel possible.
Armando Hasudungan turns difficult medical science into clear visual explanations and connected learning experiences—so learners can see the whole picture, remember what matters and find a clearer way forward.
See it clearly
Turn abstract processes and invisible relationships into something the learner can picture.
Connect the pieces
Build understanding around how concepts fit together—not a pile of isolated facts.
Make it useful
Help learners move from explanation to recall, revision and the next logical step.
What clarity feels like
When the topic stops being a blur.
Learners do not come back because the subject became easy. They come back because the explanation gave them a picture they could work with.
“Armando's teaching style gives me the foundational knowledge.
Jessica Payne-Burnett
Medical Student, Charles Sturt University
“The notes I make during his videos help me retain everything better.
Ayesha RaiStudent, Islamabad Medical and Dental College
“The drawings are amazing and super easy to remember.
Reem Mohamed Khair Abdalrazig
Student, Neelain University
Coming soon: the AH study platform
The explanation is only the start.
The free library helps you find a clear explanation. The AH platform is being built to help you connect the resources, follow a clearer path and check what actually stuck.
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- Move between connected videos, notes, diagrams and questions.
- Know what belongs next instead of rebuilding the study path yourself.
- Test your understanding while the topic is still fresh.
New and worth a look
Keep building the picture.
Lambert-Eaton Myasthenic Syndrome
Overview Lambert–Eaton myasthenic syndrome (LEMS) is a rare autoimmune disorder of the presynaptic neuromuscular junction. It causes impaired acetylcholine release, producing the characteristic triad of proximal muscle weakness, reduced reflexes and autonomic dysfunction. LEMS may occur as a paraneoplastic syndrome—most commonly associated with small-cell lung cancer (SCLC)—or as a non-tumour-associated autoimmune disorder. Neuromuscular junction: connection…
View this topic ↗About Visualising Medicine
Good education does not remove complexity. It makes complexity feel simple.
Visualising Medicine is the team behind Armando Hasudungan. We bring together medicine, illustration, writing and technology to make difficult ideas clearer—and build better ways for learners to use them.