Yuav ua li cas lub luag hauj lwm nyob rau hauv thermoregulation daim tawv nqaij: siv thiab peculiarities ntawm tus txheej txheem

Cov tawv nqaij yog ib tug tshwj xeeb kev hloov ntawm tus tib neeg lub cev. Nws yog nws leej twg ua hauj lwm pab raws li ib tug natural barrier thiab ib qhov txuas ntawm nws thiab nyob rau tib lub sij hawm tag nrho cov ib puag ncig yam tseem ceeb. Nyob rau hauv no tsab xov xwm peb yuav saib dab tsi ntawm daim tawv nqaij lub luag hauj lwm nyob rau hauv thermoregulation. Thiab yog dab tsi tib yam ntxwv nta, koj yuav tsum tau muaj ua no muaj nuj nqi?

Tib neeg tej tawv nqaij: ntxwv nta

Yog, ntawm daim tawv nqaij - nws yog tiag tiag rau hauv lub cev. Ntxiv mus, qhov loj tshaj plaws nyob rau hauv tib neeg lub cev. Nws yuag nyob rau hauv ib tug neeg laus yog peb mus rau kg, thiab lub cheeb tsam yuav ua tau mus ob square meters. Tab sis lub me me thickness ntawm daim tawv nqaij - 5 hli. Thiab nyob rau hauv ntau qhov chaw ntawm cov nqi no tej zaum yuav txawv. Nws nyob ntawm tus load. Qhov uas nws yog loj, daim tawv nqaij yog thicker thiab qias neeg. Piv txwv li, nyob rau hauv qab xib taws ntawm tus taw. Thiab nyob qhov twg muaj tsawg heev tsis sib haum xeeb - thinner. Cov tawv nqaij kuj muab nws cov derivatives. Nyob rau hauv tib neeg, nws yog cov plaub hau thiab rau tes.

Daim tawv nqaij ua ib qho tseem ceeb functions. Lawv yog cov tiv thaiv, ua pa, excretory, metabolic thiab hluavtaws. Tab sis kom to taub li cas lub luag hauj lwm ntawm daim tawv nqaij nyob rau hauv thermoregulation, nws yog tsim nyog los xav txog lub ntsiab nta ntawm lub cev qauv.

epidermis

Cov txheej txheej ntawm daim tawv nqaij yog hu ua tus epidermis. Nws yog tag nrho tsim tiaj epithelial cov ntaub so ntswg. Cov txheej no muaj ob qhov chaw. Tus thawj yog hu ua ib tug kub. Nws yog ib tug ntau ntawm tuag hlwb uas sloughed tawm txhua hnub. Tab sis daim tawv nqaij yog thinner nyob rau tib lub sij hawm tsis ua. Thiab nws tshwm sim vim hais tias cov horn yog nyob rau hauv lub thib ob txheej ntawm lub epidermis - lub sprout. Qhov no yog ib tug nyob, lossi faib hlwb uas muab ib tug tas mus txheej txheem ntawm daim tawv nqaij lwm.

ua tau daim tawv nqaij

Hauv qab lub epidermis yog lub dermis, los yog daim tawv nqaij ntawm nws tus kheej. Qhov no connective cov ntaub so ntswg yog ntom, txoj kev ua lub hauv paus ntawm lub tag nrho cov tawv nqaij. Nws yog li ntawm collagen fibers. Tsaug rau no feature, daim tawv nqaij yog elastic thiab tsis tawg nyob rau hauv tej taw. Muaj kuj receptors uas perceive kov, mob thiab kub hloov, cov ntshav thiab cov qog cov hlab ntsha, cov plaub hau hnab, hws thiab sebaceous qog.

Subcutaneous adipose cov ntaub so ntswg

Lub deepest daim tawv nqaij txheej kuj muaj adipose cov nqaij mos ntawm cov kab teeb uas tug neeg lub hlwb nyob. Nrog ib tug tseem ceeb txuam nrog cov as-ham rau hauv lub cev thickness ntawm no txheej yuav muab ntau zog mus rau ob peb centimeters. Thermoregulation dab, kev tiv thaiv tiv thaiv txhua yam kev puas tsuaj, kev khoom noj khoom haus thaum lub sij hawm nws drawbacks - cov no yog cov yam ntxwv tseem ceeb ntawm subcutaneous rog.

Yuav ua li cas yog lub cev thermoregulation

Tus txiv neej yog ib tug sov so-blooded tsiaj. Qhov no txhais tau tias nws lub cev kub yog qhov thiab ywj siab ntawm kev hloov nyob rau hauv ib puag ncig tej yam kev mob. 36,6 degrees - tus nqi kev cai paub txawm rau cov me nyuam. Nta ntawm tib neeg thermoregulation thiab yog qhov nyob rau hauv qhov ntsuas no thiab ib tug kub kub, thiab huab txias. Yuav ua li cas yog no ua tau? Lub cev yog lossi haus organic tshuaj uas yog ib feem ntawm cov khoom noj. Lawv lawm, thiab cov no ib tug thermal zog. Cov txheej txheem rov nws cov puag ncig yuav siv sij hawm qhov chaw raws li cov kev cai ntawm physics. Cov huab cua kub yog feem ntau tsawg dua hais tias ntawm lub cev. Yog li ntawd, lub tshav kub los ntawm lub cheeb tsam nrog lub siab tshaj plaws tus nqi nyob rau hauv kev coj rov qab. Xws li Thaum tshav kub kub muab rau hauv lub cev. Raws li ib tug tshwm sim, cov tib neeg thiab cov kub tseem qhov. Yuav ua li cas yog lub luag hauj lwm ntawm daim tawv nqaij nyob rau hauv thermoregulation? Nws yog ib qhov lub cev txiav txim cov kev siv ntawm tus txheej txheem. Nyob rau hauv rooj plaub no tus kub ntawm daim tawv nqaij khaus thiab pib thermoreceptors reflex cov tshuaj tiv thaiv tshav kub preservation. Ntawm no yog yuav ua li cas: cov hlab ntsha nyob rau hauv lub dermis, yog roj, tsawg cov ntshav ntws thiab tshav kub hloov lwm lub tsev tus nqi txo.

Thaum tsa tau kub, thaum lub sij hawm ce thermoregulation mechanism yog nqa tawm txawv. Nyob rau hauv cov ntaub ntawv no, lub cev yuav tsum tau them ib qhov nqi ntawm tshav kub kom tsis txhob nws overheating. Nyob rau hauv tej yam, cov receptors yog tsa lwm yam. Lawv pom thaum tshav kub kub, uas ua nyob rau hauv paj impulse tshwm sim thiab ib tug coj reflex cov tshuaj tiv thaiv. Nws cov lus dag nyob rau hauv lub fact tias cov hlab ntsha ntawm daim tawv nqaij dilate, ntawm daim tawv nqaij tau txais ib tug loj npaum li cas ntawm cov ntshav thiab lub tshav kub hloov lwm lub tsev tus nqi nce. Yog li, tib neeg lub cev yog lossi ob opposite dab tshwm sim. Tus thawj ntawm no yog hu ua lub tshav kub tiam. Nws yog vim cleavage ntawm macromolecular organic tshuaj. Ob - tshav kub. Nws yog tawm ntawm daim tawv nqaij thiab ua pa system. Qhov txawv ntawm cov ob dab yog hu ua thermoregulation.

Yuav ua li cas yog qhov tseem ceeb ntawm thermoregulation

Tus nqi rau cov hauj lwm ntawm lub cev thermoregulation overemphasized. Xav txog tej yam uas peb lub cev kub nyob rau hauv ib puag ncig. Ces, nyob rau hauv qhov khaus thaum tshav kub kub lub cev yuav tsuas yuav tua vim hais tias protein yog irreversibly rhuav pov tseg thaum ib tug kub ntawm + 42 degrees. Nyob rau hauv cov tej yam kev mob, tus txheej txheem ntawm lawv kev puas tsuaj - txoj kev ua txhaum ntawm lub sam xeeb ntawm lub saw ntawm amino acids. Txwv tsis pub cov ntshav yuav cia li khov nyob rau hauv cov hlab ntsha vim hais tias nws intercellular tshuaj - ntshav, 99% ntawm cov dej. Tab sis qhov no tsis tshwm sim los ntawm lub chaw ua hauj lwm hauj lwm ua ke daim tawv nqaij thiab lub paj hlwb. Tab sis tsis tau tsuas yog kub muaj feem xyuam rau thermoregulation. Muaj tseeb tag nrho cov tub ntxhais kev zoo siab tawm hws xib teg ntawm txhais tes. Yog vim li cas yog no mas? Qhov no yog hais tias lub xeev ntawm kev ntshai endocrine qog paim cov tshuaj hormones rau hauv cov hlab ntsha, uas ua rau vasodilation thiab, raws li ib tug tsim nyog tau, ua rau kom lub tshav kub hloov lwm lub tsev.

Peb tau pom tias dab tsi lub luag hauj lwm ntawm daim tawv nqaij nyob rau hauv lub cev thermoregulation. Qhov no lub cev sib npaug tau txais thiab tshav kub tso zis, kom ntseeg tau lub constancy ntawm lub cev kub ntawm ib tug sov so-blooded kab mob.