(N/A) Hypothalamus: Produces releasing hormones (e.g.,$TRH, CRH, GnRH, GHRH$) and inhibiting hormones (e.g.,$Somatostatin, PIH$).
$(b)$ Pituitary: Anterior lobe secretes $GH, PRL, TSH, ACTH, LH, FSH$. Intermediate lobe secretes $MSH$. Posterior lobe stores and releases $Oxytocin$ and $Vasopressin$ $(ADH)$.
$(c)$ Thyroid: Secretes $Thyroxine$ $(T_4)$,$Triiodothyronine$ $(T_3)$,and $Calcitonin$.
$(d)$ Parathyroid: Secretes $Parathormone$ $(PTH)$.
$(e)$ Adrenal: Adrenal cortex secretes $Glucocorticoids$ (e.g.,$Cortisol$),$Mineralocorticoids$ (e.g.,$Aldosterone$),and $Sex$ $corticoids$. Adrenal medulla secretes $Epinephrine$ and $Norepinephrine$.
$(f)$ Pancreas: Secretes $Insulin$,$Glucagon$,and $Somatostatin$.
$(g)$ Testis: Secretes $Androgens$ (mainly $Testosterone$).
$(h)$ Ovary: Secretes $Estrogens$ (e.g.,$Estradiol$),$Progesterone$,and $Relaxin$.
$(i)$ Thymus: Secretes $Thymosins$.
$(j)$ Atrium: Secretes $Atrial$ $Natriuretic$ $Factor$ $(ANF)$.
$(k)$ Kidney: Secretes $Renin$,$Erythropoietin$,and $Calcitriol$.