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.
The Face That Launched 1,000 Awws. Like a tiny feline fashion model, this Persian kitten seems to know how to tilt her head just so. And wow, her eyes are stunning. It's no wonder that the Persian is one of the most popular cat breeds in the United States, according to the Cat Fanciers' Association.
Some of the popular cat breeds of small size include Russian blue, Cornish Rex, Modern Siamese, Nebelung, Devon Rex, and Singapura. The honor of being the smallest recognized cat breed goes to the Singapura, which is claimed to have originated from the drain cats of Singapore.ome of the popular cat breeds of small size include Russian blue, Cornish Rex, Modern Siamese, Nebelung, Devon Rex, and Singapura. The honor of being the smallest recognized cat breed goes to the Singapura, which is claimed to have originated from the drain cats of Singapore.