Excretory System
Key Terms
Urea-a compound, CO(NH 2) 2, occurring in urine and other body fluids as a product of protein metabolism
Homeostasis-Balance among elements inside of the body
Kidney-Remove urea and other wastes; regulate water; adjust amounts of certain substances
capsule-a membranous sac or closure
vein-a blood vessel
artery-A blood vessel from the heart to somewhere else in the body
nephron-the filtering and excretory unit of the kidney
glomerulus-a tuft of convoluted capillaries in the nephron of a kidney, functioning to remove certain substances from the blood before it flows into the convoluted tubule
Large intestine-collects solid waste
Anus-removes solid waste
Ureters-Ureters transport urine from each kidney to the urinary bladder.
Urinary bladder-stores urine until it is released from the body.
Skin-Produce sweat
Homeostasis-Balance among elements inside of the body
Kidney-Remove urea and other wastes; regulate water; adjust amounts of certain substances
capsule-a membranous sac or closure
vein-a blood vessel
artery-A blood vessel from the heart to somewhere else in the body
nephron-the filtering and excretory unit of the kidney
glomerulus-a tuft of convoluted capillaries in the nephron of a kidney, functioning to remove certain substances from the blood before it flows into the convoluted tubule
Large intestine-collects solid waste
Anus-removes solid waste
Ureters-Ureters transport urine from each kidney to the urinary bladder.
Urinary bladder-stores urine until it is released from the body.
Skin-Produce sweat
Excretory System Diseases
Kidney Stones-Uric acid, calcium, or magesium might crystallize and form a kidney stone that blocks a ureter.
Kidney Damage-Excessive blood pressure can damage kidneys.
Kidney Failure-When a kidney no longer filters blood.
Kidney Damage-Excessive blood pressure can damage kidneys.
Kidney Failure-When a kidney no longer filters blood.
Video
The excretory system is how we maintain homeostasis. We are mammals, so we change Ammonia into Urea. The kidneys filter out the fluid in our blood, then reabsorb 99% of this. Only 1% of the fluid that is filtered is actually excreted.
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Games
Resources
Crash Course.”The Excretory System: From Your Heart to the Toilet - CrashCourse Biology #29.” Online video clip. Youtube. Youtube, 13 Aug. 2012. Web. 25 Feb. 2015.
Excretory System. Digital image. Imgbuddy.com. Imgbuddy.com, n.d. Web. 8 Mar. 2015. <http://imgbuddy.com/excretory-system-for-grade-5.asp>.
Excretory System. Digital image. Welcome to Biology. N.p., n.d. Web. 8 Mar. 2015. <http://mrmitchellsbiology.weebly.com/map-the-excretory-system.html>
Miller, Kenneth R., and Joseph S. Levine. "30 Human Body." Biology. Upper Saddle River, NJ: Prentice Hall, 2000. 882-87. Print.
Excretory System. Digital image. Imgbuddy.com. Imgbuddy.com, n.d. Web. 8 Mar. 2015. <http://imgbuddy.com/excretory-system-for-grade-5.asp>.
Excretory System. Digital image. Welcome to Biology. N.p., n.d. Web. 8 Mar. 2015. <http://mrmitchellsbiology.weebly.com/map-the-excretory-system.html>
Miller, Kenneth R., and Joseph S. Levine. "30 Human Body." Biology. Upper Saddle River, NJ: Prentice Hall, 2000. 882-87. Print.