Name the hormones that influence the menstrual cycle. Identify what specifically produces or regulates the hormones that are being produced (example- Hypothalamus) Describe the changes in the sonographic appearances of the endometrium throughout the menstrual cycle (make sure that you include what hormones are increased and/or decreased during each phase: example- secretory phase) Describe the changes in the sonographic appearances of the ovaries throughout the menstrual cycle (make sure that you include what hormones are increased and/or decreased and what physiological findings you may see with ultrasound: example- dominant follicle).