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.
Their furry body, small size and big ears make them one of the cutest animals on earth. 1. Persian Cats. Fun Fact: Their long hair look may look like it requires high maintenance. But in reality, they are considered to be one of the most low maintenance and friendliest cat breeds. Even though almost all of the cat breeds are cute.