explain how humans removing urine through excretory system with diagram
Answers
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. The dual function of excretory systems is the elimination of the waste products of metabolism and to drain the body of used up and broken down components in a liquid and gaseous state. In humans and other amniotes (mammals, birds and reptiles) most of these substances leave the body as urine and to some degree exhalation, mammals also expel them through sweating.
Only the organs specifically used for the excretion are considered a part of the excretory system. In the narrow sense, the term refer to the urinary system. However, as excretion involves several functions that are only superficially related, it is not usually used in more formal classifications of anatomy or function.
As most healthy functioning organs produce metabolic and other wastes, the entire organism depends on the function of the system. Breaking down of one of more of the systems is a serious health condition, for example renal failure.
in human excretory system consists of one pair of kidney and ureter urinary bladder and urethra
urine formation in three main processes filtration reabsorption and secretion about 1200 ml of blood is filtered by the glomerulus per minute
99% reabsorption of the fittest take place in the PCT
then in the city and collecting dog it allows extensive reabsorption of water and electrolytes
Ek countercurrent mechanism operates between the two Limbs of the loop of henle and those of vasa recta
then filtered get concentrated and moves down to the descending Limb is added to the ascending limb then the CNS carries out it released through urethra
and also through skin lung and liver sweat
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