Name: Complex Tissues (Xylem and Phloem)
Uploaded: 2019-07-19
Duration: 6 min 10 s
Description: The average height of a coconut tree is 30 m. How does a coconut tree move water from its roots to the very tips of its leaves? Is it magic, or is it science...

Question

With the help of a well-labelled diagram, describe the human excretory system.

Accepted Answer

The excretory system consists of a pair of kidneys, a pair of ureters, a urinary bladder, and a urethra.

The diagrammatic representation of the human excretory system is given below.

Kidneys
In our body, there is a pair of kidneys located in the abdomen, on either side of the vertebral column. Each kidney is brick red and bean-shaped. It is a vital organ that helps in filtering waste from the blood. They eliminate the waste materials in the liquid form called urine. Each kidney contains numerous coiled tubes called nephrons. It acts as a filter and removes the harmful substances (urea, waste salts, etc.) from the blood.

Ureters
They are two thin-walled, urine carrying ducts. A ureter originates from each kidney and is about 30 cm in length. The ureters run downward and open into the urinary bladder.

Urinary bladder
It is a bag-like structure in which urine is stored. Its size and position vary with the amount of urine it contains.

Urethra
The urethra is the duct which finally discharges urine from the body. It is shorter in females compared to males.

With the help of a well-labelled diagram, describe the human excretory system.

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