The adrenal glands are important structures in the HPA axis. They produce cortisol, aldosterone, androgens, and adrenaline.
References
professional, Cleveland Clinic medical. “Adrenal Gland: What It Is, Function, Symptoms & Disorders.” Cleveland Clinic, my.clevelandclinic.org/health/body/23005-adrenal-gland. Accessed 1 Dec. 2023.