a thick, brown-green fluid secreted by the liver which is alkaline in its reactions, containing bile salts, bile pigments, CHOLESTEROL and inorganic salts. Bile is transferred from the liver to the DUODENUM via the bile duct which in many mammals contains a reservoir called the gall bladder.
Vasopressin, also known as arginine vasopressin (AVP), antidiuretic hormone (ADH), or argipressin, is a neurohypophysial hormone found in most mammals.Its two primary functions are to retain water in the body and to constrict blood vessels.asopressin regulates the body's retention of water by acting to increase water reabsorption in the kidney's collecting ducts, the tubules which receive the very dilute urine produced by the functional unit of the kidney, the nephrons.
The authors proposed that this protein, Exd, alters the specificity of the selector proteins by forming heterodimers with specificity distinct from those of the individual homeodomain proteins. Intriguingly, the Exd homeodomain is related to the yeast Î± 2 homeodomain, which dimerizes with MATa product a 1 [5] .The existence of a closely related protein in humans, called Pbx, showed the potential generality of such a mechanism [12] and [13] .ntriguingly, the Exd homeodomain is related to the yeast Î± 2 homeodomain, which dimerizes with MATa product a 1 [5] . The existence of a closely related protein in humans, called Pbx, showed the potential generality of such a mechanism [12] and [13] .