Video from Professor G - Pharmacology on YouTube
Define and distinguish affinity (KA/Kd), efficacy (intrinsic activity), potency (EC₅₀) and maximal effect (Emax).
The part on this line: 10:02–12:19
Why this video
It explains the distinction between potency and efficacy on dose–response curves, defining how EC50 and Emax relate to full and partial agonism.
Part of this line
Covers part of this objective. It leaves out: The video focuses on potency and efficacy rather than defining receptor binding affinity and its equilibrium constants (KA and Kd).
Heads up
The video conceptualizes efficacy through the two-state receptor model rather than Stephenson's intrinsic efficacy parameter.
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