Question

Describe the anatomical pathway that urine takes through the urinary system from the kidney till it is voided from the body. (10 marks)

Answer 1

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Answer 2

Urine is produced in the kidneys through the processes of filtration, reabsorption and secretion. The inner part of the kidneys; the medulla, has fan-shaped tubes called pyramids. Pyramids drain urine into cup-shaped tubes; calyxes. From the calyxes, urine travels out of the kidneys through the ureters. It is then temporarily stored in the urinary bladder. When the urinary bladder is full, two bladder muscles squeeze and two sphincters open to allow urine to flows out during urination.