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300hands-on lessons across the MBBS subjects. Tap the heart's chambers, order the cardiac cycle, slide through blood pH, match the cranial nerves and more. Each one is quick, deterministic and works offline — no AI credits needed.
300 interactive lessons · needs no AI, works offline
The four chambers of the heart
Tap each chamber to see its job and which blood it carries.
Play it →Brachial plexus — Roots to Branches
Tap each stage of the plexus (C5–T1) that supplies the upper limb.
Play it →Femoral triangle — NAVEL
Tap each structure from lateral to medial in the upper thigh.
Play it →A tour of the nephron
Tap each segment to see what it filters, reabsorbs or secretes.
Play it →Layers of the epidermis
Tap each layer from surface to base — Come, Let's Get Sun Burnt.
Play it →Order the cardiac cycle
Arrange the phases of one heartbeat in the right sequence.
Play it →Steps of haemostasis
Order how the body stops bleeding after a vessel is cut.
Play it →Order the cell cycle
Arrange the phases a dividing cell passes through.
Play it →Steps of acute inflammation
Order the vascular and cellular events after injury.
Play it →Order red-cell development
Arrange the stages from stem cell to red blood cell.
Play it →Read the blood pH
Slide the pH and see acidaemia, normal or alkalaemia.
Play it →Oxygen saturation (SpO₂)
Slide the saturation and see what each level means clinically.
Play it →Kidney function by GFR
Slide the GFR to see the stage of chronic kidney disease.
Play it →Blood pressure categories
Slide systolic BP to see the category (ACC/AHA).
Play it →The action potential
Slide the membrane voltage through each phase.
Play it →Cranial nerves → function
Match each cranial nerve to what it does.
Play it →Vitamins → deficiency disease
Match each vitamin to the disease its lack causes.
Play it →Antibiotics → mechanism
Match each antibiotic class to how it kills bacteria.
Play it →Hormones → gland
Match each hormone to the gland that makes it.
Play it →Autonomic receptors → effect
Match each receptor to its classic action.
Play it →Blood flow through the heart
Build the path of a red cell from body back to body.
Play it →The RAAS pathway
Build the renin–angiotensin–aldosterone cascade.
Play it →Glycolysis — the big picture
Build the flow of glucose to pyruvate.
Play it →Screen for depression — SIG E CAPS
Flip each card to recall the nine symptoms of major depression.
Play it →Read the ECG waves
Tap each part of the PQRST trace to learn what it shows.
Play it →Explore the skeleton
Tap a region of the 206-bone skeleton to learn it.
Play it →Lobes of the cerebrum
Tap each lobe to see what it does.
Play it →The meninges
Tap each layer around the brain — and its bleed.
Play it →Regions of the stomach
Tap each part and its secretion.
Play it →Layers of the gut wall
Tap each layer from the lumen outward.
Play it →Parts of a long bone
Tap each part of a growing long bone.
Play it →Order wound healing
Arrange how a wound heals over time.
Play it →Stages of general anaesthesia
Order Guedel's classic stages.
Play it →Order fracture healing
Arrange how a broken bone repairs.
Play it →Order viral replication
Arrange how a virus makes copies.
Play it →Order the stages of grief
Arrange Kübler-Ross's five stages.
Play it →Order the stages of labour
Arrange normal labour and delivery.
Play it →Serum potassium
Slide K⁺ to see hypo-, normal or hyperkalaemia.
Play it →Serum sodium
Slide Na⁺ to see hypo-, normal or hypernatraemia.
Play it →Fasting blood glucose
Slide glucose to see the diabetes categories.
Play it →Resting heart rate
Slide the rate to see brady-, normal or tachycardia.
Play it →Body temperature
Slide the temperature to read the state.
Play it →Body Mass Index (BMI)
Slide BMI to see the WHO category.
Play it →Haemoglobin & anaemia
Slide Hb to see anaemia severity.
Play it →Poison → antidote
Match each overdose to its antidote.
Play it →Autoantibody → disease
Match each antibody to its condition.
Play it →Tumour marker → cancer
Match each marker to its cancer.
Play it →Cranial nerve → skull exit
Match each nerve to its foramen.
Play it →Enzyme → organ clue
Match each enzyme to what it flags.
Play it →Bacterium → disease
Match each organism to what it causes.
Play it →Cardiac conduction pathway
Build the heart's electrical route.
Play it →Path of a breath
Build the route of air to the alveoli.
Play it →The visual pathway
Build the route from eye to cortex.
Play it →Flow of bile
Build bile's journey to the gut.
Play it →Sperm's journey — SEVEN UP
Build the path sperm travel.
Play it →Name the 12 cranial nerves
Flip each numeral to its nerve.
Play it →Take a pain history — SOCRATES
Flip each letter of the pain mnemonic.
Play it →Anion-gap acidosis — MUDPILES
Flip each cause of high-anion-gap acidosis.
Play it →Trauma primary survey — ABCDE
Flip each step of the primary survey.
Play it →Lobes of the lungs
Tap each lobe of the right and left lungs.
Play it →The three parts of the ear
Tap the outer, middle and inner ear.
Play it →Structures of the eye
Tap each part of the eye.
Play it →Order phagocytosis
Arrange how a phagocyte eats a microbe.
Play it →Order spermatogenesis
Arrange sperm-cell development.
Play it →Order the menstrual cycle
Arrange the phases of a ~28-day cycle.
Play it →Respiratory rate
Slide the rate to see brady-, normal or tachypnoea.
Play it →Platelet count
Slide platelets to see the bleeding risk.
Play it →White cell count
Slide the WBC to see leukopenia or leukocytosis.
Play it →Murmur → valve lesion
Match each murmur to its valve problem.
Play it →Diabetes drug → mechanism
Match each drug class to how it lowers glucose.
Play it →Type of shock → cause
Match each shock to its mechanism.
Play it →The pain pathway
Build the route of a pain signal to the brain.
Play it →Classic clinical triads
Flip each named triad to its three features.
Play it →Glasgow Coma Scale
Flip each part of the GCS.
Play it →Cranial nerves — sensory, motor or both?
Flip each nerve to its type (S / M / B).
Play it →Gas exchange at the alveolus
Tap the alveolus, membrane, capillary and the gases that cross.
Play it →How a synapse fires
Tap each step a signal takes across a chemical synapse.
Play it →Parts of a neuron
Tap each part of a nerve cell.
Play it →Layers of the heart wall
Tap each layer from inside out.
Play it →Layers of an artery wall
Tap each tunica of a blood-vessel wall.
Play it →Spinal cord cross-section
Tap each region of the grey and white matter.
Play it →Layers of the uterus
Tap each layer of the uterine wall.
Play it →Openings of the diaphragm
Tap each opening and what passes through.
Play it →Order protein translation
Arrange how mRNA becomes a protein.
Play it →Order the stages of sleep
Arrange a sleep cycle from light to REM.
Play it →Order the stages of change
Arrange the transtheoretical model.
Play it →Order the stages of syphilis
Arrange untreated syphilis over time.
Play it →Order the phases of swallowing
Arrange how a bolus reaches the stomach.
Play it →Read an ECG systematically
Order the steps of a structured ECG read.
Play it →Serum calcium
Slide Ca²⁺ to see hypo-, normal or hypercalcaemia.
Play it →HbA1c
Slide HbA1c to see the diabetes categories.
Play it →Arterial CO₂ (PaCO₂)
Slide PaCO₂ to see hypo- or hypercapnia.
Play it →Serum bicarbonate (HCO₃⁻)
Slide HCO₃⁻ to see a metabolic acid–base clue.
Play it →INR on warfarin
Slide the INR to see the anticoagulation zone.
Play it →CD4 count in HIV
Slide the CD4 count to see the immune risk.
Play it →Serum bilirubin & jaundice
Slide bilirubin to see when jaundice shows.
Play it →TSH & thyroid function
Slide TSH to think hyper- or hypothyroid.
Play it →Dermatome → landmark
Match each spinal level to its skin landmark.
Play it →Reflex → nerve root
Match each deep tendon reflex to its root.
Play it →Antibody → role
Match each immunoglobulin to its job.
Play it →White cell → function
Match each leukocyte to what it does.
Play it →Hypersensitivity → example
Match each Gell–Coombs type to an example.
Play it →Vaccine → type
Match each vaccine to its type.
Play it →Anticoagulant → monitoring
Match each blood thinner to its test.
Play it →Flow of CSF
Build the route of cerebrospinal fluid.
Play it →Blood flow through the kidney
Build the path of blood through a nephron's vessels.
Play it →The coagulation cascade
Build the path from injury to a fibrin clot.
Play it →The motor (corticospinal) tract
Build the route of a movement command.
Play it →Acute limb ischaemia — the 6 P's
Flip each P of a threatened limb.
Play it →Pneumonia severity — CURB-65
Flip each point of the CURB-65 score.
Play it →The Circle of Willis
Tap each artery of the brain's arterial circle.
Play it →Layers of the adrenal gland
Tap each zone — salt, sugar, sex, then catecholamines.
Play it →Ligaments of the knee
Tap each ligament and what it stops.
Play it →Order the phases of mitosis
Arrange PMAT + cytokinesis.
Play it →Order transcription
Arrange how DNA becomes mRNA.
Play it →Order the cardiac action potential
Arrange phases 0–4 of a ventricular myocyte.
Play it →Order the stages of HIV
Arrange untreated HIV over time.
Play it →Order the stages of shock
Arrange how shock progresses if untreated.
Play it →The anion gap
Slide the anion gap to spot a metabolic acidosis.
Play it →Left ventricular ejection fraction
Slide the EF to classify heart failure.
Play it →The QTc interval
Slide the QTc to spot a long-QT risk.
Play it →Arterial oxygen (PaO₂)
Slide PaO₂ to see hypoxaemia and respiratory failure.
Play it →FEV₁/FVC ratio
Slide the ratio to spot an obstructive pattern.
Play it →Serum magnesium
Slide Mg²⁺ to see hypo- or hypermagnesaemia.
Play it →Urine output
Slide the output to spot oliguria.
Play it →Serum lactate
Slide lactate to gauge tissue perfusion.
Play it →Pancreatic islet cell → hormone
Match each islet cell to what it secretes.
Play it →Bleeding disorder → deficiency
Match each disorder to its missing factor.
Play it →Anaemia → by cell size
Match each anaemia to its classic cause.
Play it →Heart sound → cause
Match each heart sound to what makes it.
Play it →Diuretic → site of action
Match each diuretic to where it works in the nephron.
Play it →Virus → cancer
Match each oncovirus to the cancer it drives.
Play it →Anterior pituitary hormone → target
Match each hormone to the organ it drives.
Play it →Fracture eponym → site
Match each named fracture to its bone.
Play it →Toxin → mechanism
Match each bacterial toxin to how it acts.
Play it →Hepatitis virus → spread
Match each hepatitis virus to how it spreads.
Play it →Leukaemia → typical age
Match each leukaemia to who it usually hits.
Play it →The Krebs (citric acid) cycle
Build one turn of the citric acid cycle.
Play it →Dorsal column (fine touch) pathway
Build the route of fine touch & proprioception.
Play it →The baroreceptor reflex
Build the reflex that buffers a blood-pressure rise.
Play it →The auditory pathway
Build the route of sound from ear to cortex.
Play it →The APGAR score
Flip each part of the newborn APGAR score.
Play it →Strep throat — Centor criteria
Flip each point that predicts strep throat.
Play it →Exudate — Light's criteria
Flip each rule that marks a pleural exudate.
Play it →Rheumatic fever — JONES
Flip each major criterion of rheumatic fever.
Play it →Mania — DIG FAST
Flip each feature of a manic episode.
Play it →Alcohol screen — CAGE
Flip each question of the CAGE screen.
Play it →Quit smoking — the 5 A's
Flip each step of brief smoking-cessation advice.
Play it →Post-op fever — the 5 W's
Flip each cause by post-op day.
Play it →Gallstones — the 5 F's
Flip each classic gallstone risk factor.
Play it →Rotator cuff — SITS
Tap each of the four rotator-cuff muscles.
Play it →Layers of the scalp — SCALP
Tap each layer from skin to bone.
Play it →Parts of the large intestine
Tap each segment of the colon.
Play it →Divisions of the mediastinum
Tap each compartment of the mediastinum.
Play it →The four heart valves
Tap each valve and what it guards.
Play it →The cranial fossae
Tap each floor of the cranial cavity.
Play it →Parts of the small intestine
Tap each part from stomach to colon.
Play it →The spinal nerve plexuses
Tap each plexus and a key nerve.
Play it →Order urine formation
Arrange the steps that make urine.
Play it →Order atherosclerosis
Arrange how a plaque forms in an artery.
Play it →Order muscle contraction
Arrange the sliding-filament steps.
Play it →Order the bacterial growth curve
Arrange the phases of a growing culture.
Play it →Order carcinogenesis
Arrange how a normal cell becomes cancer.
Play it →Order pressure-ulcer stages
Arrange the stages of a pressure sore.
Play it →Order cell injury
Arrange injury from reversible to cell death.
Play it →Order the reflex arc
Arrange the path of a reflex.
Play it →Serum albumin
Slide albumin to gauge liver/nutrition.
Play it →C-reactive protein (CRP)
Slide CRP to gauge inflammation.
Play it →ESR
Slide the ESR to spot inflammation.
Play it →Intraocular pressure
Slide the eye pressure to spot glaucoma risk.
Play it →Intracranial pressure
Slide the ICP to spot dangerous rises.
Play it →Pulse pressure
Slide it to see narrow vs wide.
Play it →Serum uric acid
Slide uric acid to gauge gout risk.
Play it →Blood alcohol concentration
Slide the BAC to see the effect.
Play it →Nerve injury → sign
Match each injured nerve to its deformity.
Play it →Skin lesion → definition
Match each term to what it means.
Play it →Defence mechanism → example
Match each defence to what it looks like.
Play it →Germ layer → derivative
Match each embryonic layer to what it forms.
Play it →Electrolyte → ECG change
Match each disturbance to its ECG clue.
Play it →Jaundice → bilirubin type
Match each jaundice to its bilirubin pattern.
Play it →Headache → key feature
Match each headache to its hallmark.
Play it →Blood groups & compatibility
Match each group to its rule.
Play it →Insulin → onset
Match each insulin to how fast it works.
Play it →Thyroid labs → diagnosis
Match each TSH/T4 pattern to the diagnosis.
Play it →The electron transport chain
Build the flow of electrons to oxygen.
Play it →The thyroid (HPT) axis
Build the hypothalamic–pituitary–thyroid axis.
Play it →The stress (HPA) axis
Build the hypothalamic–pituitary–adrenal axis.
Play it →The flow of lymph
Build lymph's route back to the blood.
Play it →Fertilisation to implantation
Build the first week of development.
Play it →Ottawa ankle rules
Flip each rule for when to X-ray an ankle.
Play it →SIRS criteria
Flip each systemic inflammatory response criterion.
Play it →Emergency history — SAMPLE
Flip each part of a rapid history.
Play it →Burns — rule of 9s (adult)
Flip each area's % body surface.
Play it →Heart failure — NYHA class
Flip each functional class.
Play it →Airway — Mallampati score
Flip each class of the airway view.
Play it →ASA physical status
Flip each ASA class before surgery.
Play it →WHO 5 moments for hand hygiene
Flip each moment to clean your hands.
Play it →Triage colour categories
Flip each triage colour.
Play it →DVT — Wells score idea
Flip the key points of the Wells DVT score.
Play it →Postpartum haemorrhage — 4 T's
Flip each cause of bleeding after birth.
Play it →Order an ELISA
Arrange the steps of a sandwich ELISA test.
Play it →Order the PCR cycle
Put the three temperature steps of PCR in order.
Play it →Neuromuscular transmission
Order how a nerve signal triggers a muscle to contract.
Play it →How insulin is secreted
Order glucose-stimulated insulin release from a β-cell.
Play it →Bilirubin metabolism
Order bilirubin's journey from red cell to gut.
Play it →Classical complement pathway
Order classical complement activation.
Play it →The micturition reflex
Order how the bladder empties.
Play it →Circulation changes at birth
Order what happens to the fetal shunts at the first breath.
Play it →The bone remodeling cycle
Order how old bone is replaced by new.
Play it →A drug's journey — ADME
Order pharmacokinetics: what the body does to a drug.
Play it →Stages of prenatal development
Order zygote to fetus.
Play it →The Cori cycle
Order the lactate shuttle between muscle and liver.
Play it →Phases of a seizure
Order the phases of a generalised seizure.
Play it →The gait cycle
Order the stance phase of one stride.
Play it →The Na⁺/K⁺ pump
Order one cycle of the sodium–potassium pump.
Play it →Apoptosis (intrinsic path)
Order programmed cell death.
Play it →Phases of gastric secretion
Order the three phases of acid secretion.
Play it →Ketogenesis
Order how the liver makes ketone bodies while fasting.
Play it →The urea cycle
Order how toxic ammonia becomes urea.
Play it →Loop of Henle — countercurrent
Order how the medullary gradient is built.
Play it →Serum creatinine
Slide creatinine to gauge kidney clearance.
Play it →Blood urea (BUN)
Slide the urea nitrogen.
Play it →Total cholesterol
Slide total cholesterol to see the risk band.
Play it →LDL cholesterol
Slide LDL — the 'bad' cholesterol.
Play it →Triglycerides
Slide triglycerides to see the band.
Play it →Serum phosphate
Slide phosphate to see low/normal/high.
Play it →Serum ferritin
Slide ferritin — the body's iron store.
Play it →Serum amylase
Slide amylase toward the pancreatitis range.
Play it →Serum osmolality
Slide osmolality to see hydration state.
Play it →Central venous pressure
Slide CVP to judge filling.
Play it →Mean arterial pressure
Slide MAP — the perfusion pressure.
Play it →Mean cell volume (MCV)
Slide MCV to classify anaemia by size.
Play it →Absolute neutrophil count
Slide the ANC — infection defence.
Play it →APTT
Slide the APTT — the intrinsic clotting time.
Play it →Reticulocyte count
Slide the reticulocyte % — young red cells.
Play it →Transferrin saturation
Slide transferrin saturation — iron status.
Play it →Fetal heart rate
Slide the fetal heart rate.
Play it →Serum ALT (liver)
Slide ALT to gauge liver-cell injury.
Play it →Blood ketones
Slide blood ketones toward DKA.
Play it →Lithium level
Slide the lithium level — a narrow therapeutic window.
Play it →Vitamin → coenzyme
Match each B vitamin to its active coenzyme.
Play it →Antihypertensive → class
Match each drug to its class.
Play it →Antiarrhythmic → class
Match the Vaughan-Williams class to an example.
Play it →Immunoglobulin → role
Match each antibody isotype to its job.
Play it →Cytokine → action
Match each cytokine to its main effect.
Play it →Storage disease → enzyme
Match the lysosomal disease to its missing enzyme.
Play it →Amino acid → product
Match each amino acid to what it makes.
Play it →Neurotransmitter → role
Match each transmitter to its main role.
Play it →Brain area → function
Match each region to what it does.
Play it →Muscle → action
Match each muscle to its main movement.
Play it →Joint → type
Match each joint to its synovial type.
Play it →Heart valve → listening spot
Match each valve to where you auscultate it.
Play it →Lung volume → meaning
Match each spirometry term to its definition.
Play it →Disease → inheritance
Match each condition to its inheritance pattern.
Play it →Karyotype → syndrome
Match each chromosome count to the syndrome.
Play it →Bacterium → Gram & shape
Match each bug to its Gram stain and shape.
Play it →Antifungal → mechanism
Match each antifungal to how it works.
Play it →Antiviral → target
Match each antiviral to its target.
Play it →Tumour suppressor → cancer
Match each gene to the cancer it guards against.
Play it →CD4 count → infection
Match the CD4 threshold to the opportunistic infection.
Play it →Journey through the gut
Build the path of food from mouth to anus.
Play it →Fetal circulation path
Build oxygenated blood from placenta to fetus.
Play it →Hepatic portal circulation
Build blood from gut to heart via the liver.
Play it →Basal ganglia — direct path
Build the movement-facilitating loop.
Play it →Glycogenolysis
Build glycogen breakdown to blood glucose.
Play it →Gluconeogenesis
Build glucose from pyruvate.
Play it →Fatty-acid β-oxidation
Build the breakdown of a fatty acid.
Play it →Heme synthesis
Build heme from glycine and succinyl-CoA.
Play it →Fibrinolysis
Build how a clot is broken down.
Play it →The reproductive (HPG) axis
Build the hypothalamic–pituitary–gonadal axis.
Play it →Path of light in the eye
Build light's route to the retina.
Play it →Tear drainage path
Build a tear's route from gland to nose.
Play it →Path of an ovum
Build the egg's journey from ovary to implantation.
Play it →Carbohydrate digestion
Build starch's breakdown to glucose.
Play it →CO₂ transport to the lung
Build how CO₂ travels from tissue to lung.
Play it →The vomiting reflex
Build the sequence of vomiting.
Play it →Thyroid hormone synthesis
Build how T3/T4 are made.
Play it →cAMP second messenger
Build Gs-protein signalling to a cell response.
Play it →The humoral immune response
Build the antibody response to an antigen.
Play it →Dietary fat transport
Build the exogenous lipoprotein pathway.
Play it →Any differential — VINDICATE
Flip each letter of the VINDICATE checklist.
Play it →Causes of coma — AEIOU-TIPS
Flip each cause of a reduced conscious level.
Play it →Reversible arrest — 4 H's & 4 T's
Flip each reversible cause of cardiac arrest.
Play it →Cerebellar signs — DANISH
Flip each sign of cerebellar disease.
Play it →Parkinsonism — TRAP
Flip each cardinal feature of parkinsonism.
Play it →AF causes — PIRATES
Flip each cause of atrial fibrillation.
Play it →Normal-gap acidosis — USED CARP
Flip each cause of a normal anion-gap acidosis.
Play it →Pancreatitis — GET SMASHED
Flip each cause of acute pancreatitis.
Play it →Appendicitis — MANTRELS
Flip each item of the Alvarado (MANTRELS) score.
Play it →Cauda equina red flags
Flip each red flag of this surgical emergency.
Play it →Soft-tissue injury — RICE
Flip each step of early sprain care.
Play it →Ottawa knee rules
Flip each reason to X-ray a knee.
Play it →DKA — diagnostic triad
Flip each part of the DKA triad.
Play it →Nephrotic syndrome
Flip each feature of nephrotic syndrome.
Play it →Tetralogy of Fallot
Flip each of the four features.
Play it →Serotonin syndrome
Flip each part of the triad.
Play it →Neuroleptic malignant syndrome
Flip each feature (FEVER).
Play it →Horner's syndrome triad
Flip each sign of a sympathetic lesion.
Play it →Cushing's reflex (raised ICP)
Flip each part of the response to raised ICP.
Play it →Opioid overdose triad
Flip each sign of opioid toxicity.
Play it →Educational only — not clinical advice. Interactive lessons are concise revision aids; always confirm with your prescribed textbooks and correlate clinically.
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