The urinary system
The urinary system
The urinary system consists of two kidneys, two ureters, the bladder and one urethra. Each kidney receives blood through a renal artery and returns blood through a renal vein.
Step-by-step lessons on Edexcel GCSE Biology 7.4.4 Structure of the urinary system. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.