Homeostasis - yog khaws cia qhov nqi koj tshuav ntawm xwm

Homeostasis - muaj peev xwm ntawm cov organic system kom muaj kuj qhov dynamic tshuav nyiaj li cas hauv cov ib puag ncig. Qhov no lub sij hawm yog ntawm Greek keeb kwm. Nws muaj ib tug complex qauv tsim los ntawm ob lo lus - homoios (zoo) thiab stasis (xeev). Cov mechanisms ntawm nws tus kheej-kev cai kom cov constancy ntawm lub physiological, hu ua homeostatic. Nyob rau hauv lub internal qauv ntawm ib qho kev qhib system thiab nws cov sis raug zoo nrog cov ib puag ncig, tsau txhawb xws mechanisms yuav muaj ntau zog:

- Conditional khov ntawm lub system kom siab tshaj plaws adaptability rau qhov yuav tsum tau tej yam kev mob;

- Striving rau qhov nqi koj tshuav preservation yuav pab kom muaj cov txheeb ze nqi koj tshuav ntawm cov qauv thiab cov kev haumxeeb koom haum ntawm lub system;

- unpredictable nyhuv tso cai methodically mus cuag tshiab tau hais tias pab los mus pab txhawb ntawm nws tus kheej-ntxawg yam.

Raws li homeostasis - ib lub xeev raws li nyob rau hauv lub interchange nrog cov ib puag ncig, xws systems yuav muaj ob hom ntawm cov tswv yim: zoo thiab tsis zoo. Tsis zoo tswv yim hom system yog reflected nyob rau hauv cov tshuaj tiv thaiv uas hloov lub aspiration kev hloov nyob rau hauv kev coj rov qab. Tswv yim pab kom muaj ib tug tas mus li lub xeev ntawm lub cev, kev pab yuav tau sib npaug raws cai. Ib qho piv txwv ntawm xws li ib tug kev twb kev txuas yuav pab thermoregulation nyob rau hauv tib neeg. Homeostasis - ib tug complex txheej txheem ntawm kev sis raug zoo ntawm tag nrho cov Cheebtsam ntawm txhua tus neeg system. Ntau zog los tsis lub cev kub thermoreceptors hypothalamus thiab daim tawv nqaij tam sim ntawd sau npe tus hloov. Qhov no teeb liab yog kis tau mus rau lub hlwb, uas ua rau lub rov qab teb ntawm lub cev - txos los sis tsa tus kub.

Zoo tswv yim yog thaws rov los nyob rau hauv qhov kev nce rau ntawm lub nce mus nce los. Tej coupling ua destabilization nyhuv, ces yog tsis conducive mus rau lub txheej txheem. Nws yog ntau tsis tshua muaj heev nyob rau hauv lub hauj lwm ntawm organic systems, tab sis kuj muaj nws tus nqi. Homeostasis - ib tug system uas yuav tsum tau ib tug ua ke ntawm ob hom tswv yim. Piv txwv li, limiting qhov hluav taws xob tej zaum ntawm paj hlwb yog lub cim ntawm ntau txawm tias ntawm qhov kev txiav txim zaum. Yog li, ib tug zoo tswv yim yog tsim nyog rau txoj kev hloov mus rau ib tug tshiab lub xeev ntawm homeostasis. Tej kev hloov no yog hu ua metastable. Piv txwv li kev hloov ntawd yuav ua tau ib tug nce nyob rau hauv as-ham rau lub dej ntshiab ntws, ua rau clouding ntawm cov tshuaj tiv thaiv reservoir thiab algae overgrowth nws channel.

Homeostasis ecosystem - ib tug dynamic xwm ntawm ecological tshuav nyiaj li cas los ntawm kev ua tshiab ntawm nws yooj yim hais. Lub tswvyim ntawm equilibrium nyob rau hauv cov xwm tau tsim los ntawm lub American botanist thiab ecologist Frederikom Klementsom. Nyob rau hauv tas li ntawd mus rau lub nqi koj tshuav ntawm lub ecosystem paub qhov txawv lom, cellular homeostasis thiab tshuav nyiaj li cas nyob rau hauv tib neeg lub cev. Qhov no muaj peev xwm yuav tsum to taub raws li ib tug general yam ntxwv ntawm ntau yam dab tas li interacting nrog txhua lwm yam.