Human urinary excretory system Presentation Transcript
The kidney- grade 11
Structure of the urinary excretory
This system includes 4 main organs:
Main function of the urinary System
human excretory system functions to
remove waste from the human body.
urination animals get rid of
nitrogenous waste products of metabolism,
including ammonia, urea, and uric acid.
The internal & external structures of a
The flow of urine inside the kidney
Purpose of a kidney
blood, redirecting wastes as urine
through the ureter and to the urinary
bladder and out of the body via urethra.
kidney consists of millions of nephrons
– the fundamental units of the kidney
Structure of a nephron
What is a nephron?
unit of a
the nephron at
capsule and is
filtered by the
out of the
Blood Flow through the Kidneys
The 3 processes of blood purification
inside the kidneys.
The remaining urine goes to the collecting
duct and into the ureters, the bladder and
out of the body via the urethra.
Normal & abnormal flow of urine
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