The urinary system consists of the kidneys, ureters, urinary bladder, and urethra.The kidneys filter the blood to remove wastes and produce urine.The ureters, urinary bladder, and urethra together form the urinary tract, which acts as a plumbing system to drain urine from the kidneys, store it, and then release it during urination.t the same time that the sphincters relax, the smooth muscle in the walls of the urinary bladder contract to expel urine from the bladder. Production of Hormones. The kidneys produce and interact with several hormones that are involved in the control of systems outside of the urinary system. 1  Calcitriol.
What does an equal sign with a circle around it mean? An equal sign within a circle is a the grant of a copyright license providing additional users the right to share, distribute and post only exact copies of the original â¦ work. Thus meaning no one can comp or alter the work whatsoever if republishing the image.
However, if two things are equal by definition of what they are, three bars could be used: nÂ² â¡ n Ã n the above â¡ can be three bars because the square function by definition multiplies n times n. It's not just a circumstantial thing that is true in this case and not in others.ou can substitute one for the other any time that you wish. So they basically have the same meaning as an equal sign, but they just mean these are ALWAYS equal. Source(s): http://mathworld.wolfram.com/Defined.htm...