Endocrine system

The endocrine system is a system of ductless endocrine glands that secrete chemicals called hormones that circulate within the body via the bloodstream to affect distant organs. It does not include exocrine glands such as salivary glands, sweat glands and glands within the gastrointestinal tract.

Table of endocrine glands and the hormones secreted

In both sexes:

(starting from the head and going downwards)

hypothalamus
- thyrotropin-releasing hormone (TRH)
- gonadotropin-releasing hormone (GnRH)
- growth hormone-releasing hormone (GHRH)
- corticotropin-releasing hormone (CRH)
- somatostatin
- dopamine
pituitary gland
- GH (human growth hormone)
- PRL (prolactin)
- ACTH (adrenocorticotropic hormone)
- TSH (thyroid-stimulating hormone)
- FSH (follicle-stimulating hormone)
- LH (luteinizing hormone)
- oxytocin
- ADH (antidiuretic hormone)
pineal gland
- melatonin
thyroid gland (thyroid hormones is a good writeup)
- thyroxine (T4)
- triiodothyronine (T3)
- calcitonin
parathyroid glands
- parathyroid hormone (PTH)
heart
- atrial-natriuretic peptide (ANP)
stomach and intestines
- gastrin
- secretin
- cholecystokinin (CCK)
- somatostatin
- neuropeptide Y
liver
- insulin-like growth factor
- angiotensinogen
- thrombopoietin
islets of Langerhans in the pancreas
- insulin
- glucagon
- somatostatin
adrenal glands
- adrenal cortex
  - glucocorticoids - cortisol
  - mineralocorticoids - aldosterone
  - androgens (including testosterone)
- adrenal medulla
  - adrenaline (epinephrine)
  - noradrenaline (norepinephrine)
kidney
- renin
- erythropoietin (EPO)
- calcitriol
skin
- calciferol (vitamin D₃)
fat cells
- leptin

In males only

testes
- androgens (testosterone)

In females only

ovarian follicle
- oestrogens
corpus luteum
- progesterone
placenta (when pregnant)
- progesterone
- human chorionic gonadotrophin (HCG)