Somatostatin
1. It is secreted by hypothalamus
2. It is a growth inhibiting hormone, as it inhibits the secretion of somatotrophin or growth hormone.
3. It acts over the secretion of the endocrine gland. Thus it is not a systemic hormone.
4. It is also produced by some pancreatic cells and digestive cells.
Somatotrophin
1. It is secreted by anterior lobe of pituitary gland
2. It is a growth stimulating hormone
3. It acts over all body tissues promoting growth. Thus it is a systemic hormone.
4. It is only secreted by anterior lobe of pituitary gland.

1. It is secreted by hypothalamus
2. It is a growth inhibiting hormone, as it inhibits the secretion of somatotrophin or growth hormone.
3. It acts over the secretion of the endocrine gland. Thus it is not a systemic hormone.
4. It is also produced by some pancreatic cells and digestive cells.
Somatotrophin
1. It is secreted by anterior lobe of pituitary gland
2. It is a growth stimulating hormone
3. It acts over all body tissues promoting growth. Thus it is a systemic hormone.
4. It is only secreted by anterior lobe of pituitary gland.