Dissction:
• How would you describe the responses to ACh and 5-HT in this tissue? (Remember to use key pharmacological characteristics such as EC50 and maximum response when describing concentration-response curves).
• What receptors are likely to be involved in the responses to ACh and 5-HT?
• What signalling mechanisms would be activated by these receptors?
• What is the likely identify of Drug X? How have you concluded this from your data?
