1. Title page 2. Somatotroph 3. Periodic bursting 4. The model 5. Slow manifold 6. Bifurcation diagram 7. Overlay trajectory 8. The question 9. Phase-resetting 10. Manifold computations 11. Before animated 12. Before homoclinic 13. At homoclinic I 14. At homoclinic II 15. After animated 16. After homoclinic I 17. After homoclinic II 18. Summary		What is a somatotroph cell A type of neuro-endocrine cell Secretes growth hormone Increase transmembrane potential activates Ca channel Ca flows in K flows out Ca enters the cell => biochemical trigger for hormone scretion Followed by slower process of inactivation