Human urinary system kidney(internal and external structure)

The urinary system, also known as the renal system or urinary tract, consists of the kidneys, ureters, bladder, and the urethra. The purpose of the urinary system is to eliminate waste from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH. Wikipedia

1. URINARY
SYSTEM
BASICS OF BIOMEDICAL
Prepared by Atheena Pandian

2. Crafty Projects
Urinary System
Purpose
Structure
Internal
External
Functions
1.
2.
3.
4.
5.
6.
PRESENTATION
OUTLINE

3. WHAT IS URINARY SYSTEM?
The urinary system, also known as the
renal system or urinary tract, consists of the
kidneys, ureters, bladder, and the urethra

4. The urinary system is to
eliminate waste from the
body, regulate blood
volume and blood pressure,
control levels of
electrolytes and
metabolites, and regulate
blood pH.
PURPOSE

5. A pair of Kidney
MAIN ORGAN

7. Size, Shape and
Location
The kidneys are two bean-
shaped organs found in vertebrates.
They are located on the left and
right in the retroperitoneal space
In adult humans are about 11
centimetres (4.3 in) in length.

8. Ecternal Anatomy
The right kidney often sits slightly lower than the left
one because of the position of the liver
The kidneys are aout 4 1/2 inches long and 2 1/2 inches
wide

9. The kidneys are protected in front by the contents of
the abdomen and behind by the muscles attached to
the backbone
They are further protected by a layer of fat.
Ureters – Muscular tubes that transport urine from
each kidney to the bladder.Urinary
Bladder – A sac that collects and holds urine that
comes from the ureters
Urethra – a narrow passageway where urine passes
from the bladder to the outside of the body, called
urination.

10. INTERNAL STRUVTURE
The kidneys are highly vascular (contain a lot of
blood vessels) and are divided into three main
regions:
Renal cortex (outer region which contains about 1.25
million renal tubules)
Renal medulla (middle region which acts as a
collecting chamber), and
Renal pelvis (inner region which receives urine
through the major calyces)

13. The kidneys are the major organs that maintain
homeostasis (balance of the various body
functions) in the body and help control blood
pressure
They maintain balance in electrolytes, acid-base,
and fluid in the blood
The kidneys remove nitrogenous waste from the
body (creatinine, urea, ammonia) and keep
essential substances the body needs to function
as it should
The kidneys produce the hormone erythropoietin
that stimulates the production of red blood cells
and enzymes.
Every minute 1300 mL of blood enter the kidneys,
1299 mL leave the kidney. and 1 mL leaves as urine
The kidneys have many functions
1.
2.
3.
4.
FUNCTIONS OF
KIDNEY

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