0:00 Negative Feedback Mechanisms
1:26 Humoral Stimuli
2:55 Neural Stimuli
4:21 Hormonal Stimuli
5:37 Hormones and Target Cells
8:18 Hormone Interactions
10:53 Chemical Structure of Hormones
12:41 Lipid-Soluble vs Water-Soluble
15:23 Lipid vs Water (Visual Comparison)
