Question

Draw a diagram of the human excretory system and label the various parts.

Answer 1

Hint:The principal organ of the human excretory system is the kidneys. Every individual seems to have a pair of kidneys. Ureters are a small muscular tube that takes urine into the bladder from the kidneys. The bladder is a structure resembling a sac. A tube that arises from the urinary bladder is the urethra.

Complete answer:
First we should know about the human excretory system to answer this question. Every organism's survival relies on certain essential processes. One of them is excretion. Different animals adopt varying excretion modes. There is a specialised excretion mechanism in complex organisms, like humans, called the human excretory system. From different sources we all get our nutrients that are digested and metabolised in our body. The body continues to sort out beneficial and toxic compounds in an organism after metabolic reactions. The concentration of toxins can be dangerous, as we all know, and the body eliminates all metabolic waste by the excretion process.
The Human Excretory System comprises a pair of kidneys, a pair of ureters, a urinary bladder, and a urethra.
Kidneys: Kidneys are organs which are present in the form of beans situated on either side of the backbone and are covered by the back ribs and muscles. Through the hilum, which is a notch on the inner concave surface of the kidney, the blood vessels, ureters and nerves enter the kidneys. The renal pelvis is present within the hilum, a large funnel-shaped area.
Ureter: Each kidney extended from the renal pelvis emerges out a pair of thin muscular tubes known as the ureter. It transports water to the urinary bladder from the kidney.
Urinary bladder: It is a sac-like muscular structure which holds urine. The method of micturition, i.e. the process of urination, empties the urinary bladder.
Urethra: This tube originates from the urinary bladder which allows the body to remove urine. It serves as a natural route for sperm and urine in males. The sphincter muscles guard its opening.

Note:The most common excretion process in lower organisms is diffusion. The human body is an exceptional device in which various life processes (breathing, digestion, circulation, etc.) take place simultaneously. As a result, many of the waste products that our body produces come in different forms, including water, carbon dioxide, and nitrogen products such as ammonia, urea, and uric acid.