Several key hormones play crucial roles in the HPA. From the hypothalamus, CRH, TRH, GnRH, GHRH, and somatostatin are significant. The anterior pituitary releases hormones such as GH, PRL, ACTH, thyroid-stimulating hormone (TSH), luteinizing hormone (LH), and follicle-stimulating hormone (FSH). The posterior pituitary stores and releases oxytocin and vasopressin.
