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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Mitral Stenosis
Overview Mitral stenosis causes an obstruction to blood flow from the left atrium to left ventricle usually as a result of rheumatic heart disease. The stenosis results in increased pressure in the left atrium, pulmonary vasculature and right side of heart. Mitral valve disease is a frequent cause of heart failure and death. Mitral valve area:…
View topic ↗Gestational Diabetes
Overview Diabetes: A group of metabolic diseases in which there are high blood sugar levels over a prolonged period. Two types Diabetes Mellitus Type I (autoimmune destruction of beta cells in the pancreas) and Type II (insulin resistance followed by beta cell atrohpy) Gestational Diabetes: diabetes diagnosed during the second half of pregnancy with…
View topic ↗Rheumatoid Arthritis
Overview Rheumatoid arthritis is a common systemic inflammatory disease characterized by the presence of a destructive polyarthritis with a predisposition for affecting the small joints of the hands and feet and the wrists. Rheumatoid arthritis (RA) is the most common inflammatory arthritis, with a lifetime prevalence of up to 1 percent worldwide. Like many autoimmune diseases, the etiology…
View topic ↗Asthma
Overview Asthma is a chronic airway inflammation disorder due to complex interactions between inflammatory cells, mediators and airway cells. In young children in whom lung function testing is not feasible, including most preschool children, asthma is defined by the presence of variable respiratory symptoms. Asthma is one of the most common causes of presentation to the Emergency…
View topic ↗Schizophrenia
Overview Schizophrenia is a complex syndrome often presenting in late teens/early 20s with positive, negative and cognitive symptoms. Positive symptoms include behaviours and thoughts that are not normally present (psychosis). Negative symptoms include social withdrawal and affective flattening. Finally, cognitive symptoms are expressed as a broad set of cognitive dysfunction. The average lifetime prevalence of…
View topic ↗Pre-operative Care
Overview Definition Perioperative Management refers to the period of time extending from the day prior to surgical intervention to several days after said intervention. It consists of the preoperative, intraoperative and postoperative period. Patient education Investigation used at surgery Coagulation status (ie. INR <2) Imaging scans for day of surgery Pre-operative care Aims: to provide…
View topic ↗Somatoform Disorders
Overview Doctors and patients often experience frustration and helplessness in consultations around medically unexplained symptoms. Up to 50 percent of primary care patients present with physical symptoms that cannot be explained by a general medical condition. Although most do not meet the strict psychiatric diagnostic criteria for one of the somatoform disorders, they can be referred to…
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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 – Toll Like Receptors Overview
Learn how Toll-like receptors (TLRs) detect microbial components and activate signaling pathways that drive innate immune responses. This video provides an overview of different TLR types, their ligands, and their role in linking innate and adaptive immunity.
Neuroanatomy – Cranial Nerves
Master the Cranial Nerves in this neuroanatomy video, covering all 12 nerves, their functions, and clinical relevance. Perfect for exams and practical review, this video breaks down origin, pathways, and key deficits associated with each cranial nerve.
Human Gut Microbiome
Discover how your gut microbiome—trillions of bacteria in the large intestine—shapes metabolism, immunity, and overall health. The human gut microbiota, dominated by anaerobes like Firmicutes and Bacteroidetes, ferments non-digestible carbohydrates into short-chain fatty acids (SCFAs) such as butyrate, which supply up to 70% of colonocyte energy and influence systemic metabolism, fat storage, and immune signaling.…
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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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.