2.69 Urinary System

Key Points:
1. In the urinary system there are two kidneys, the left and right, each with its own separate bloody supply. The kidneys carry out excretion and filtration and osmoregulation.
2. Each kidney has a tube which leads to the bladder.
3. This is called the ureter, and this carries urine from kidneys to the bladder
4. Then there is one bladder.
5. Then the urine is excreted through a structure called the urethra, then excreted out of the vagina or out of the penis