Hello, Readers Welcome To The Site And I Am The Author And Today I Am Giving You A Knowledge About Human Excretory System.
Introduction:
Excretory System Is Also An Important System Which Performs Major Work For Removing The Waste Material From The Body.
ORGANS OF HUMAN EXCRETORY SYSTEM :
Kidney:
Kidney Is A Bean Shaped Structure In Body And Has Found In A Pair Which Are Divided Into Internal Parts By Renal Artery And Renal Vein. The Internal Divison Of Kidney Is Known As Renal Cortex And Has Million Of Small Structures Which Are Called Nephrons.
Nephron:
Nephron Is The Smallest Unit Which Is Responsible For Excretion. Nephron Has Various Parts Like Boman Capsule PCT DCT And Collecting Duct.
Boman Capsule:
Boman Capsule Is A Cup Like Structure Which Contains A Ragged Thread Like Structures Called Glomerulus Which Are Final Capillaries In Which Water Is Transferred From Inside To Outside Or High Concentration To Low C.
PCT:
PCT Is Another Pipe Like Structure In Which Water Is Filtered And Minerals And Nutrients Are Re-absorbed.
DCT:
DCT Also Functions Same As PCT.
Collecting Duct:
Collecting Duct Is A Structure In Which All Waste Material Or Urine Is Stored.
Ureters:
Ureter Is A Tube Like Structure Which Is Found In A Pair And Responsible To Transfer The Urine Into Urinary Bladder By Which The Urine Is Released Outside.
This Is The Excretory System Of Human Body But On The Basis Of Main Substance In Urine The Excretion Is Divided Into 3 Types Such As:
1.Amminotelic:
Amminotelic Is A Type Of Excretion In Which Amonea Is Main Substance Which Released Outside From Body With Excess Quantity Of Water. Ammonia Is Very Toxic In Nature So More Water Is Required For Its Removal.
This Type Of Excretion Is Found In Aquatic Animals.
2.Ureotelic:
In These Type Of Excretion Amonea Is Converted Into Urea Which Is Less Toxic In Nature Than Amonea And To Release It Less Water Is Required.
This Type Of Excretion Is Found In All Terrestrial Animals.
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