HomeostasisEnvironmentalchangesInjuryPathogensOrgan SystemsHOMEOSTASISHOMEOSTASISHomeostasis PrincipleOur organ systems work constantly to keep every aspect of the system stable and functioning well. The organ systems are challenged by changes from inside and outside the body and must help the body adjust to those changes and keep the organs functioning effectively. This ongoing effort by the body to maintain a stable internal environment in the face of change is known as the principle of homeostasis. Homeostasis Example – Temperature RegulationHuman body temperature is regulated very tightly to keep it to 98.6 degrees Fahrenheit by an internal thermostat found at the base of the brain. If your body gets too cold, you shiver to generate heat and regain your normal body temperature. If your body gets too warm, the blood vessels dilate and you also sweat to regain normal temperature. These methods of adjusting to body temperature help your body systems maintain homeostasis despite changing external conditions. F969810010210410698.6ºFhypothalamus regulates body temperaturevessels dilatesweatforms© Copyright NewPath Learning. All Rights Reserved. 94-4932Visit www.newpathlearning.com for Online Learning Resources.Stable Internal EnvironmentOur organ systems work constantly to keep every aspect of the system stable andddddd ffffffffffffffuuuuuuuuuuuuuuuunnnnnnnnnnnnnnnccctioning weeeeeeeeelllllllllllllllllllllllllllll..... TTTTTTTTTTTTThhhhhhhhhe oooooorrrrrrrrrrrrrrrrggggggggggggggggaaaaaaaaaaansystems are challenged by changes from inside and outside the body and must hhhhhhhhhhhhheeeeeeeeeeeeeeellllllllllllppppppppppppp ttttttttthhhhhhhhhhhhhhhheeeeeeeeeeeeeee bbbody adjust to thooooossssssseeeeeeeeeee changes and keep the organs functioning effectively. This ongoing effort by theeeeeeeeee bbbbbbbbbbbbbbboooooooooooooooodddddddddddddddddyyyyyyyyyyyyyy tttttttttttttttoooooooooooooo mmmmmmmmmmmmmmmaaaaaaaaaaaaaaaaiiiiiiiiiiinnnnnnnnnnnnnnnttain a stable iiiiiiiiiiiiinnnnnnnnnnnnnnnnntttttttteeeeeerrrrrrrrrrrnnnnnnnnnnnnaaaaaaaaaaaallllllllllll environment in the face of change is known as the principle of homeostasis. Human body temperature is reeeeeeeeggggggggggggguuuuuuuuuuuuuuulllllllllaaaaaaaaaaaatttttttttteeeeeeeeeeeeeddddddddddddd vvvvvvvvvvvvveeeeeeeeeerrrrrrrrrrryyyyy ttttiiiiiggggggggggghtllllyyyyyyyyyyy tttttttttttttttooooooooooooooooo keeeeeeeeeeeeeeeeepppppppppppppppppppppp iiiiiiiiiiiiiitttttttttttttt ttttttttoooooooooooooo 999999998.66666666666 ddddddddddddeeeeeeeeegrees Fahrenheit by an internal thermostatfound at the base of the bbbbbbbbbbbbbbbbrrrrrrrrrrrraaaaaaaaaaaiiiiiiiiiinnnnnnn. IIIIIIffffff yyyyyyyyyyyyyyyooooooouuuuuuuuuuurrrrrrrrrr bbbbbbbbbbbbooooooooooooooddddddddddddddyyyyyyyyyyyyy gggggggggggeeeeeeeeettttttttttsssss ttttttoo colddddddddddddddddddd,,,,,,,,,,, yyyyyyyyyyyyyyyyyyyyyoooooooooooouuuuuuuuuuuuuu sssssssssssssssshhhhhhhhhhhhhhhhhhhiiiiiiiiiivvvvvveeeeeeeeeeeerrrrrrrrrrrrrrrrrrrr ttttttttttttttooo generate heat and regain your normal body temperature. If your bodddddddddddddddyyyyyyyyyyyyyyy gggggggggggggeetss ttttttttttttoooooooooooooooooooooooooooooo warm, the blood vesssssssssssssssssssssssseeeeeeeeeeeeelllllllllllsssssssssss dddddddddddddddiiiiiiiiiiiiiiiiiillllllllllllaaaaaaaaaaaaaaaaaatttttteeeeeeeeeeeee aaaaaaaaaaaaaannnnnnnnnnnnnd you also sweat to regain normal temperature. These methods of adjusting tttttttttttttooooooooooooo bbbbbbbbbbbbbbboodddddddddddyyyyyyyyyyyyyyy tttttttttttteeeeeeeeeeeemmmmmmperature help yourrrrrrrrr bbbbbbbbbbbbbbbbboooooooooooooodddddddddddddyyyyyyyyyyyyyyyyyyy sssssssssystems maintain homeostasis despite changing external conditionsssssss.... FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF999969969696669610101010101011111100000001001000210010444446998888886996969969696966681010110811888881000001010211104444666999696969696669108101081118888810000000101011112410444444669699969696969888888898.......66666666666666666ºFFFFFhhhhhhhhhhhhhhhhhhyyyyyyyyyyyyyyyhhhhhyyyyyyyypppppppppppooooooooooooooottttttttttthhhhhhhhaaaaaaalllllllllllaaaaaaaaaaaaaaammmmmmmmmmmmmmuusssssssssssssssrrrrrrrreeegggggggggggggguuuulates ppppbbbbbbbbbbbbbbboooooooooddddddddddddyyyyyyyydyyyyyyyyyyyyyyyyy ttttttttttttemmmmmmmmmmmmmmmmppppppppppppppppeeeeeeeeeeeeeratureerrvessels dilatesweatformsSSStaaaaaaaaabbbbbbbbbbbbbbbbbblllllllllllllleeeeeeeeeeeeeeeeeeee IIIIIIIIIIIIIInnnnnnnnnnnnnnntttttttttttttttteeeeeeeeeeeeeeeeeerrrrrrrrrrrrrnnnnnnnnal EEEEEEEEEEEEEEEEEEnnnnnnnnnnnnviroooooooooooooooooonnnnnnnnnnnnnnnnment
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