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The Urinary System

The Urinary System. kidneys. ureters. urinary bladder. urethra. Organs of the Urinary System. Urinary System. Two Kidneys Perform all filtering functions except actual excretion. Two Ureters Bring urine from Kidneys to Urinary Bladder Urinary Bladder Holds Urine until excretion

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The Urinary System

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  1. The Urinary System

  2. kidneys ureters urinary bladder urethra Organs of the Urinary System

  3. Urinary System • Two Kidneys • Perform all filtering functions except actual excretion. • Two Ureters • Bring urine from Kidneys to Urinary Bladder • Urinary Bladder • Holds Urine until excretion • Can stretch • Urethra • Moves urine from bladder to outside of body

  4. Function • Kidneys are a blood filter • Remove nitrogenous wastes (urea, uric acid and ammonia) • Maintain electrolyte, acid-base, • Maintain fluid balance of blood (and therefore blood pressure)

  5. Over 180 liters (50 gallons) of blood pass through the kidneys every day. When this blood enters the kidneys it is filtered and returned to the heart via the renal vein.

  6. Kidney- External Anatomy • Lateral surface- convex • Medial is concave- • Hilum • Opening to Kidney • Sinus • Space within hilum • Kidneys receive blood vessels and nerves.

  7. Kidney Internal Anatomy I • Renal arteries and veins • Bring blood in and out of kidney • Renal cortex • Outer layer of Kidney • Renal medulla • Inner layer of Kidney

  8. Kidney Internal Anatomy II • Renal Pyramids • Extensions of ureter • Renal Columns • Space between pyramids within the medula • Renal Papilla • Narrow end of pyramid • Calyx (ces) • Collecting tubes • Renal Pelvis • Collecting vessel prior to ureter

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