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.
Adenine di-Phosphate (ADP) is an important physiological agonist that plays a vital role in normal hemostasis and thrombosis.The importance of ADP in normal hemostasis is clearly demonstrated in patients suffering from storage pool disease who show excessive bleeding tendencies.It is well established that ADP activates platelets through 3 purinergic receptors, namely P2Y1, P2Y12 and P2X1.he understanding of the function of this receptor has been possible due to the availability of multiple P2Y12 antagonists and the development of the P2Y12 null mice. The third and the final P2X1 receptor is an ion channel that upon activation causes an influx of calcium.