Saturday, October 22, 2011

Excretory system video

The excretory system is a passive biological system that removes excess, unnecessary or dangerous materialism and prevent damage to the body. It is responsible for the elimination of the waste products of metabolism as well as other liquid and gaseous wastes. As most healthy functioning organs produce metabolic and other wastes, the entire organism depends on the function of the system; however, only the organs specifically for the excretion process are considered a part of the excretory system. The excretory system gets rid of waste called urine


Excretory functions
Removes metabolic and liquid toxic wastes as well as excess water from the organism.
Within each kidney there are an estimated one million microscopic nephrons, where blood filtration takes place. Each nephron contains a cluster of capillaries called a glomerulus. A cup-shaped sac called a bowmans capsule surrounds each glomerulus. The blood that flows through the glomerulus is under great pressure. This causes water, glucose and urea to enter the bowmans capsule. White blood cells, red blood cells and proteins remain in the blood. As the blood continues in the excretory system, it passes through the renal tubule. During this time, reabsorption occurs: glucose and chemicals such as potassium, sodium, hydrogen, magnesium and calcium are reabsorbed into the blood. Almost all the water removed during filtration returns to the blood during the reabsorption phase. The kidneys control the amount of liquid in our bodies. Now only wastes are in the nephron. These wastes are called urine and include urea, water and inorganic salts. The cleansed blood goes into veins that carry the blood from the kidneys and back to the heart.
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4 comments:

Unknown said...

This video is very informative. Excretory system helps humans to pass the chemical waste out. It also helps to maintain the body temperature.
For more information related to this please visit: digestive system and excretory system information and medical animation

Unknown said...

Your blog sounds to be simple one.Thanks for sharing.Excretory system comes into frame after the completion of digestion system. It deals with solid waste and liquid waste separately.

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Unknown said...

Really appreciatable blog with good information. This is what i was looking for. The excretory system is responsible for the elimination of the waste products of metabolism as well as other liquid and gaseous wastes. With present advancement in science we can even look at the videos of the patients undergoing surgeries leading to better results and lesser chances of flaws.

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