11 terms

Chapter 5 Lesson 3 The Excretory System

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urea
chemical that comes from the breakdown of proteins
perspiration
substance produced by the skin that is excreted
nephron
a structure in the kidneys where blood is filtered
homeostasis
the process by which the body maintains stable internal conditions
excretion
the process of removing waste
urine
water, urea and other wastes are eliminated through this
ureters
connect the kidneys to the urinary bladder
kidneys
the main organs of the excretory system
urethra
urine leaves the body through this structure
liver
makes urea and breaks down old red blood cells
excretory system
a group of organs that eliminates waste from the body