Can u explain the excretory system in man?
Excretory System in Man The excretory system in man is formed of one pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Kidneys The kidneys are dark-red, slightly flattened, bean shaped organs about 10 cm long, 5 cm wide and 4 cm thick each weighing about 27 gms. They are placed against the back wall of the abdominal cavity just below the diaphragm, one on either side of the vertebral column, between the last thoracic vertebra and the third lumbar vertebra. They are protected by the last 2 ribs. The kidneys are covered by the peritoneum in the front and on the side and they rest against the abdominal muscles. Their position is slightly asymmetrical, the left kidney being a little higher than the right. Position of Kidneys in the body Each kidney is bean shaped. The outer surface is convex and the inner surface is concave. The inner surface has a deep notch called hilus. The ureters, renal artery, renal vein and the nerves enter the kidney through the hilus. Kidney of
