Undergoes Atrophy during adult hood
Calcitriol
Thymus
Brain natriuretic peptide (BNP
Inhibin
Progestins, and inhibin
Adipose Tissue
Atrial natriuretic peptide (ANP)
Testosterone
Secretes natriuretic peptides
Erythropoietin (EPO)
Androgens
Digestive Tract
Heart
Secretes Thymosins
Secretes Leptin
Testes
Secretes Hormones involved in the coordnation of system functions, glucose metabolism, and appetite
Estrogen
