Unugyada Adipose iyo noocyada ay

unugyada Adipose - waa unug gaar ah connective in u shaqeeya sida kaydinta ugu weyn ee baruurta ee foomka of triglycerides. In aadanaha, oo waa hadiyad in laba nooc oo kala duwan: caddaan iyo brown. Its lacagta iyo qaybinta shaqsi kasta.

unugyada adipose White uu leeyahay saddex hawlood: ningax kaamerada, barkin farsamo, iyo, ugu muhiimsan, ilaha tamarta. Asal ahaan waa maqaarka ka yar iyo waa insulator ugu weyn ee jirka maxaa yeelay waxa ay qabtaan kululeeyo saddex jeer ka xun dhar kale. Degree of ningax ku xiran tahay dhumucda daaha this. Tusaale ahaan, qof qaba lakabka 2 mm baruurta subcutaneous a dareemi doontaa sidii raaxo badan ee suurtogalka ah ee 15 ° C, halka 1-mm - 16 ° C. Intaa waxaa dheer, unugyada adipose ku xeeran ee xubnaha gudaha iyo ka ilaaliya gariirka.

Tusaale ahaan, waa:

- agagaarka wadnaha;

- in kelyaha,

- buuxinta agagaarka laabatooyinka;

- gudaha godka isha ka dambeeya bu'da ah, iwm

Sida dukaanka weyn ee tamarta, waxa iyada ku siinayaa stock ee isticmaalka xad-dhaaf ah. Sidaa darteed, tamar dheeraad ah waxaa laga heli karaa baruurta garaam ah (9 Kcal) ka badan ka carbohydrates garaam (4 Kcal) ama protein (4 Kcal). Intaa waxaa dheer, haddii qof lagu hayaa tamarta xad-dhaaf ah ee foomka of carbohydrates, miisaan kordhinta yeeli lahaa dhaqdhaqaaqa.

Si kastaba ha ahaatee, waxaa jira qaar ka mid ah xayiraad on isticmaalka baruurta sida a "shidaalka". Sidaas darteed, unugyada in shaqayn horrayn marayo geedi socodka anaerobic (tus, erythrocytes) waa in tamarta ka carbohydrates helaan, iyo waa in ay leeyihiin margin ku filan. Intaas waxaa sii dheer, hoos jira xaalad caadi ah, maskaxda ku xiran tahay glucose iyo uusan isticmaalin acids dufan. Xaaladaha aan caadi ahayn, dheefshiidka, wuxuu isticmaali karaa meydadka ketonka (byproduct ah aan dhamaystirnayn -shiid baruurta), haddii ay la joogo in tiro ku filan oo waaweyn yihiin.

Brown unugyada adipose ayaa magaceedii ka midabka sababa vascularization hodanka iyo mitochondria dadku ku soo buuxiyey, kuwaas oo laga helay meelo kala duwan ka helay.

Halkii kuugu adeego sidii substrate ah, waxaa subaga tamarta sii daayo si toos ah kulaylka. farsamo ee ay qarnigan la xidhiidha shiid of mitochondria ah.

tamarta ejection habka lagmamaarmaanna u ah sida kulaylka firfircoonaan in xaaladaha uu heerkulka jidhka guud uu bilaabo inuu hoos u. Iyada oo laga jawaabayo hypothermia in aadanuhu qarsan hormoonnada in kicin sii daayo acids dufan ka triglycerides oo, ee jeedo, dhaqaajiso Thermogenin.

In aadanaha, dhismaha unugyada adipose brown bilaabataa at 20 toddobaad ee horumarinta uurjiifka. Intii lagu guda jiray dhalashada waa qiyaastii 1% ka mid ah miisaanka jidhka. Its lakabka ku yaal agagaarka xididdada dhiigga qeybinayay maskaxda oxygen iyo xubnaha caloosha iyo wareegsan oo beeryarada, adrenals iyo kelyaha. Thanks to nudaha brown adipose xubnaha muhiim dhashay ee ma supercooled jawi heer kulka yar yahay.

dhalashada ilmaha ka dib markii uu bilaabo inuu horumariyo unugyada adipose cad, brown oo uu bilaabo inuu ku baxayn. Qof weyn ma laha meel ay raasamaal, inkasta oo waa hadiyad (qiyaastii 1% by miisaanka of baruurta), laakiin aan kala sooc lahayn qasan cad.