How do receptors recognize the receptors? Discuss and explain the terms specificity and affinity as it applies to the messenger receptor complex. Outline some typical responses. These may include muscle contraction, increase blood pressure, production of a hormone, change in heart rate, and production of antibodies.
Explain endogenous messengers using serotonin and dopamine as examples. Discuss their effect in mood modulation, competition, reward anticipation, learning and memory.