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.
As far as designer dogs go, the Chiweenie is one of the cutest ones around. Long and small, this adorable hybrid (a Chihuahua and Dachshund mix) is picking up in popularity. And itâs no wonder; this breed is friendly and loving, making him the ideal lap dog. But after heâs done with cuddling, heâll want to playâ¦ a lot.