Wheel entries:

• 1. Types of receptors
• 2. MAPK pathway
• 3. G-protein activation/inhibition cycles
• 4. G-protein coupled receptors signaling with lipid mediators
• 5. Binding of epidermal growth factor (EGF) to its receptor
• 6. Receptors with serine/threonine kinase activity 
• 7. Guanylate cycle pathway
• 8. Jak/STAT signaling pathway 
• 9. Adrenaline Activation of Adenylyl Cyclase System 
• 10. Role of NO in the relaxation of smooth muscle cells in the vascular wall
• 11. The activity of PI3K
• 12. Ceramide in Apoptosis Regulation
• 13. Hypothalamic-pituitary axis
• 14. Intracellular Signaling Pathways of TRH 
• 15. Structure of thyroid hormones