Question

Explain the structure of excretory system with a neat labelled diagram. (4 marks)

Answer 1

Excretory System
The nitrogenous wastes are removed from the body by the excretory system. It is composed of kidneys, ureters, urinary bladder and urethra.

• Kidney: (0.5 marks)

Regulates chemical composition of fluids in the body

• Ureter: (0.5 marks)

Carries urine from ureters to Urinary bladder

• Urinary Bladder: (0.5 marks)

Muscular, expandable structure that stores urine temporarily

• Urethra : (0.5 marks)

A tube through which urine is discharged from the body.

• Renal artery: (0.5 marks)

Brings blood that contains oxygen and urea from the Aorta to kidneys

• Renal vein: (0.5 marks)

Brings filtered blood from kidneys to inferior venacava

EXCRETORY SYSTEM (1 mark)