12 modules · Core track
Each module includes a track-aware summary, evidence-graded claims, a quiz, flashcards, and pointers into the Pathway Atlas. Switch tracks in the sidebar.
Why Pathways Matter
Why every clinician and researcher should think in pathways, not isolated molecules.
Reading Pathway Diagrams
Arrows, T-bars, dashed lines — what they mean and where they lie.
Glycolysis & the TCA Cycle
The two engines of central carbon metabolism — and why both matter at the bedside.
Oxidative Phosphorylation
Electron transport chain, proton-motive force, and the small drugs that uncouple them.
Lipid & Amino Acid Metabolism
Beta-oxidation, ketogenesis, urea cycle, and the bedside-relevant inborn errors.
Signal Transduction Basics
GPCRs, second messengers, and the universal grammar of cell signaling.
RTKs, RAS-MAPK & PI3K-AKT
The two cascades that drive most solid tumors — and their targeted therapies.
Wnt, Hedgehog & Notch
Three developmental pathways that re-emerge as drivers of cancer and stem-cell biology.
Immune Signaling Pathways
TLRs, JAK-STAT, and NF-κB — the wiring behind biologics and autoimmune disease.
Apoptosis & Cell Cycle Control
How cells decide to divide — or die — and the drugs that exploit those decisions.
Disease Pathways & Drug Targets
From pathway knowledge to prescribing decisions and trial design.
Capstone: Cross-Pathway Reasoning
Integrate metabolism, signaling, and cell-fate decisions in a series of clinical and research vignettes.