Interactions Between the Urinary System and Other Organ Systems

indicates ways in which this system affects other systems indicates ways in which other systems affect this one

All Systems

The urinary system serves all other systems by eliminating metabolic wastes and maintaining fluid, electrolyte, and acid-base balance

Integumentary System

Renal control of fluid balance essential for sweat secretion ^^ Epidermis is normally a barrier to fluid loss; profuse sweating can lead to oliguria; skin and kidneys collaborate in calcitriol synthesis

Skeletal System

Renal control of calcium and phosphate balance and role in calcitriol synthesis are essential for bone deposition ^^ Lower ribs and pelvis protect some urinary system organs and Ca2+ balance important for muscle

Muscular System

Renal control of Na+, K+ contraction

^^ Some skeletal muscles aid or regulate micturition (external urethral sphincter, male bulbocavernosus muscle, abdominal muscles used in Valsalva maneuver); muscles of pelvic floor support bladder

Nervous System

Nervous system is very sensitive to fluid, electrolyte, and acid-base imbalances that may result from renal dysfunction ^^ Regulates glomerular filtration and micturition

Endocrine System

Renin secretion by kidneys leads to angiotensin synthesis and aldosterone secretion; kidneys produce erythropoietin ^^ Regulates renal function through angiotensin II, aldosterone, atrial natriuretic factor, and antidiuretic hormone

Circulatory System

Kidneys control blood pressure more than any other organ; erythropoietin from kidneys regulates hematocrit; kidneys regulate plasma composition; cardiac rhythm is very sensitive to electrolyte imbalances that may result from renal dysfunction ^^ Perfuses kidneys so wastes can be filtered from blood; blood pressure influences glomerular filtration rate; blood reabsorbs water and solutes from renal tubules

Lymphatic/Immune Systems

Acidity of urine provides nonspecific defense against infection ^^ Return of fluid to bloodstream maintains blood pressure and fluid balance essential for renal function; immune system protects kidneys from infection

Lymphatic Immune System

Respiratory System

Rate of acid secretion by kidneys affects pH of blood and may therefore affect respiratory rhythm ^^ Provides O2 to meet high metabolic demand of kidneys;

dysfunctions of pulmonary ventilation may require compensation by kidneys to maintain acid-base balance; inhaled toxic fumes can damage kidneys

Digestive System

Kidneys excrete toxins absorbed by digestive tract; kidneys excrete hormones and metabolites after liver deactivates them; calcitriol synthesized by kidneys regulates Ca2+ absorption by small intestine ^^ Liver synthesizes urea, the main nitrogenous waste eliminated by kidneys; urea contributes to osmotic gradient of renal medulla; liver and kidneys collaborate to synthesize calcitriol

Reproductive System

Urethra serves as common passageway for urine and sperm in males; urinary system of a pregnant woman eliminates metabolic wastes of fetus

^^ Enlarged prostate can cause urine retention and kidney damage in males; pregnant uterus compresses bladder and reduces its capacity in females

Saladin: Anatomy & I 23. The Urinary System I Text I I © The McGraw-Hill

Physiology: The Unity of Companies, 2003 Form and Function, Third Edition

910 Part Four Regulation and Maintenance

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    What is some interactions between the urinary system and?
    8 years ago
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    2 years ago
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    1 year ago
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    1 year ago
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    12 months ago
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