Kidney contains extraglomerular mesangial cells.

Secretin is secreted by S-cells of duodenum.

Cholecystokinin stimulates the release of bile from gall bladder.

Histamine stimulates gastric acid secretion.

Target site of enterocrinin is intestine where It regulates the production of intestinal juices.

Secretin is secreted by S - cells of duodenum.

Chronic gonadotrophin hormones are secreted by placenta during pregnancy.

Inhibin inhibits secretion of follicle stimulating hormone.

Progesterone prepares the uterus for the implantation of fertilised ovum.

Renin is secreted by juxtaglomerular cells of kidney.

Cardiac myocytes of heart secrete brain natriuretic peptide.

Calcidiol is a prehormone that is produced in the liver by hydroxylation of vitamin D3 (cholecalciferol).

Angiotensin is secreted by hepatocyes of liver.

Hyposecretion of testes results in failure in the development of secondary sexual characteristics in males.

1,25-Dihydroxyvitamin-D (calcitriol) is a calcium regulating hormone.