Overview of the Endocrine System By William F Young, Jr, MD, MSc, Mayo Clinic College of Medicine Reviewed / Revised Apr 2022 | Modified Sep 2022 View Patient Education Hypothalamic-Pituitary Relationships Hypothalamic Controls Anterior Pituitary Function Posterior Pituitary Function Topic Resources Female Endocrine System Male Endocrine System The pituitary and its target... Hypothalamic Neurohormones The endocrine system coordinates functioning between different organs through hormones, which are chemicals released into the bloodstream from specific types of cells within endocrine (ductless) glands.