The Urinary System

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The Urinary System

• Urine for a Great Time!!!

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Engage

• Watch the following video that shows thirty-seven
  -year old Dan Whitmore who has kidney failure. He
  has to spend three days a week attached to a
  dialysis machine. Hes on the waiting list for a
  kidney transplant.

3
Primary Urinary Organs

• 2 Kidneys
• Renal cortex (outer region)
• Renal medulla (inner region)
• Nephron functional unit of kidney
• Renal artery/vein kidney blood flow
• 2- Ureters urine excretory duct
• 1 - Urinary bladder urine storage
• 1 - Urethra urine elimination tube

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Kidneys

• Two reddish organs just above the waist behind
  the stomach
• Filter the blood and removes waste

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Why is significant that the renal artery
truncates off the Aorta?
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Ureter Connects the kidneys to the urinary
bladder

• Peristalic waves
• Renal Calculi
• Kidney stones

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Urinary Bladder Smooth muscle bag
Explain why are women more prone to bladder
infections than are men
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Nephron

• Filtering unit of the kidney
• Blood enters full of waste and leaves filtered
• Blood enters under high pressure and flows into
  the capillary beds

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Urine Formation

• Stage One Gomerular Filtration
• Stage Two Tubular Reabsorption
• Stage Three Tubular Secretion

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For Each Stage Explain

• Location
• Movement from blood ?? Filtrate
• What drives/facilitates movement

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The Human Kidney Nephron
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Explain How ADH and Aldesterone help Regulate
Blood Volume and Blood Pressure
ADH (vasopressin) Hypothalamus ?
pituitary gland
Aldesterone adrenal cortex
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