List of top Physiology Questions on Human Endocrine System

A woman presenting with amenorrhea and galactorrhea is diagnosed with a pituitary adenoma and elevated prolactin levels. What is the most likely cause of her amenorrhea?

In an experimental study, blood glucose levels were elevated to 2--3 times the normal and maintained at that level. What is the most likely pattern of insulin secretion in response?

On day 21 of a 28-day menstrual cycle, which hormone profile is correct?