What is urinary bladder? Structure, embryonic development, functions along diseases related to urinary bladder.

URINARY BLADDER Introduction U rinary bladder is a hollow, muscular sac and pear-shaped distensible organ that lies on the pelvic floor. Bladder receives urine from the ureters, which are thick tubes running from each kidney down to the superior part of the bladder. Urine is collected in the body of the bladder and it is voided through the urethra. When bladder is full, it exhibits an oval shape and when empty, it is flattened by the overlying bowel and looks like the shape of the pear. The volume of human bladder vary from person to person. Range of the urine that can be held in the bladder is 400 ml to 1000 ml. A normal urinary bladder can hold about 400-600 ml of urine. The muscles of the bladder plays an important role in storage and emptying of urine. During micturition, the bladder wall contains specialized smooth muscles called detrusor muscles. The whole body of the bladder is divided into different sections are as following: apex body neck fundus apex lies superior...