The urinary system
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The Urinary System. Function of Urinary System. Filters blood of waste products THEN Expels the waste from the body in the form of urine. 1. The kidneys. Regulate the levels of water, sodium, potassium (sodium and potassium are examples of electrolytes)

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The Urinary System

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The urinary system

The Urinary System


Function of urinary system

Function of Urinary System

  • Filters blood of waste products

    THEN

  • Expels the waste from the body in the form of urine


1 the kidneys

1. The kidneys

  • Regulate the levels of water, sodium, potassium (sodium and potassium are examples of electrolytes)

  • Remove urea from blood


Anatomy of the kidney

Anatomy of the Kidney

  • Renal cortex – outer layer

  • Medulla – middle layer

  • Pelvis - inner section which is the central collecting area located at wide end of ureter


Nephron

Nephron

  • Is the filtering unit of the kidney – blood is filtered here

  • Contains glomeruli which contain capillaries (i.e. minute blood vessels) that take blood to & from nephron

  • Forms urine


Ureters

Ureters

  • Carry urine from the pelvis of the kidney to the bladder

  • Ureters are muscular tubes lined with mucous membrane


Bladder

Bladder

  • Is a hollow muscular sac that holds the urine

  • Is also referred to as a vesicle

  • When urine is expelled it is called micturition, voiding or urination


Urethra

Urethra

  • Single canal that carries urine from the bladder to the outside if the body

  • Urinary meatus is the term given to the external opening of the urethra

  • Urine is made up of 95% water & 5% waste products


Word components

Word Components


Word components1

Word Components


Disorders of the urinary system

Disorders of the Urinary System

  • 2 major types

  • Filtration of blood in kidney is disturbed

  • Flow of urine is blocked


Renal failure

Renal Failure

  • Disturbance to filtration of blood leads to the blood becoming toxic

  • Dialysis is the process by which artificial filtration of the blood is carried out

  • Renal failure is caused by damage to the kidneys e,g, infections, trauma, cancer, certain drugs


Blockages

Blockages

  • Can occur in ureters, bladder, or urethra

  • Can be caused by inflammation from infections, tumours, stones known as renal calculi

  • Blockage can cause a build up of urine which can then lead to kidney damage


Other disoreders

Other Disoreders


Urinary disorders

Urinary Disorders


Abbreviations

Abbreviations


Procedures

Procedures


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