Vasopressin (Antidiuretic Hormone). Vasopressin (arginine vasopressin, AVP; antidiuretic hormone, ADH) is a peptide hormone formed in the hypothalamus, then transported via axons to, and released from, the posterior pituitary into the blood. AVP has two principle sites of action: the kidney and blood vessels.
There are many cat breeds in all, and they are all adorable, but these 20 seem to strike many as the most irresistible, and we can see why. They are as adorable as ever, and we think you will love these breeds and their cute kittens. Ragdoll. These are our favorite kittens, by far.
Â© Chanan Photography The International Cat Assocation recognizes over 50 breeds of domestic cat (Felis silvestris catus); most national breed associations recognize fewer. Though cats come in a diversity of colors, body forms, and fur types, all but a few are exclusively descended from the African wildcat.