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.
Siamese Cats. You might wish this breed came with a mute button. Siamese are vocal and demanding, capable of conveying its wants in a range from mews to loud raspy calls. Siamese are also curious, affectionate and athletic.iamese cats are eternal kittens. My favorite breed is the Siamese. I have five of these adorable fun-loving cats, two beautiful males and three delightful Siamese girls. The Siamese cat is known as the eternal kitten-the cat that never grows up. They are very intelligent, and very loyal.