Urinary bladder an organ that regularly stores a hyperosmotic concentration of urine. It therefore is relatively impermeable and has multiple epithelial layers. The urinary bladder of the cetaceans (whales and dolphins) is proportionally smaller than that of land-dwelling mammals. In the whole class of Aves there is no urinary bladder per se. Although all birds have kidneys, the ureters open directly into a cloaca which serves as a reservoir for urine, fecal matter, and eggs. In crustaceans, the urinary bladder consists of two sets of lateral and central lobes. Urinary bladder The urinary bladder is a hollow muscular organ in humans and
Kidney (Chinese medicine) turbid fluid is sent downward for expulsion by the bladder. The water gate is also responsible for regulating the opening and closing of drainage ducts, namely the bladder and anus, which rely on the activity of kidney qi. Also, while lung qi controls respiration, kidney qi coordinates inhalation. The kidney is responsible for hair luster, production of bone and brain matter, correct functioning of the ears, and regulating the opening and closing of the bladder and anus. Mentally, its responsible for supporting memory, while emotionally its linked to determination, or will power (zhi). Kidney (Chinese medicine) According to traditional Chinese