Abstract This work extends the Graphic System for Teaching Physiological Causality to endocrinology, providing a standardized set of visual models for teaching hormonal regulation. Designed as a classroom-ready resource, it distills complex endocrine pathways—from glucose homeostasis to hypothalamic-pituitary axes—into intuitive radial diagrams that map causal relationships without theoretical jargon. Each figure follows three core rules: (1) parameters as bidirectional axes, (2) directional vectors for causal relationships, and (3) text boxes linked to the core construct via arrows for key pathological states. Ranging from basic (two-axis) to comprehensive (multi-axis and loop integrations), these diagrams offer a progressive learning scaffold to help students recognize regulatory patterns across endocrine systems. Building on the framework’s prior construction in physiology, this adaptation underscores its versatility as a domain-agnostic teaching tool.
Methodology Notice: All diagrams in this manuscript were created using the Dr Mihăilă Graphic System®, a standardized visual method for transforming causal relationships into intuitive geometric models (multi‑axis structures and circular‑arc feedback systems). This graphical methodology has been fully detailed in our foundational work and is applied here to the specific domain addressed in this manuscript.
Trademark Notice: Dr Mihăilă Graphic System® is an officially registered trademark under the European Union Intellectual Property Office (EUIPO).
Keywords: endocrinology education, visual teaching tools, causal diagrams, hormonal feedback, medical pedagogy, radial graph models, clinical endocrinology