Adipose dinama tse nyenyane tse le ho mefuta e tsa lona

Adipose dinama tse nyenyane tse - ke e khethehileng connective dinama tse nyenyane tse le sebetsang e le polokelo ka sehloohong bakeng sa mafura ka mokgwa wa triglycerides. Ho batho, e le le teng ka mefuta e 'meli e fapaneng: tšoeu le sootho. palo ea sona 'me kabo ea motho ka mong.

Tšoeu adipose dinama tse nyenyane tse nang le mesebetsi e meraro: mogote kwahelang, phetha molao cushion, 'me, botlhokwa go feta, mohloli oa matla. Ha e le hantle ho ke ke feela ka tlas'a letlalo 'me e le ka sehloohong' mele kobo e hobane o khanna futhumatsa ka makhetlo a mararo ea bobeng bo fetisisang ho feta masela a mang. Tekanyo ea ho kwahelang itšetlehile ka botenya ba lera lena. Ka mohlala, motho a ka 2 limilimithara lera la subcutaneous mafura tla ikutloa e le phutholohile ho ka kgonehang ho 15 ° C, athe le 1-limilimithara - 16 ° C. Ho feta moo, adipose dinama tse nyenyane tse pota-potileng le litho tse ka hare le ho sireletsa ho tloha ho thothomela.

Ka mohlala, e ke ho re:

- ho pota pelo;

- ka liphio;

- tlatsa pota manonyeletso;

- ka hare ho soketeng leihlo ka mor'a leihlo la, joalo-joalo

E le ka sehloohong eneji ee lebenkeleng, ho fana ka hae ka setokong ya tshebediso ya feteletseng. Ka hona, le matla a eketsehileng ka fumaneha ho tloha ka a mob mobile mafura (9 kcal) ho feta ho tloha lik'habohaedreite a mob mobile (4 kcal) kapa protheine (4 kcal). Ho phaella moo, haeba motho a 'na a matla a feteletseng ka mokgwa wa lik'habohaedreite, boima ba' mele le keketseho ea tla utloa bohloko tsamaiso ea hae.

Leha ho le joalo, ho na le ba bang ba lithibelo tabeng ea ho sebelisa mafura a ka "mafura". Kahoo, dinama tse nyenyane tse e sebetsa haholo-holo ka dithulaganyo anaerobic (mohlala, erythrocytes) li lokela ho fumana matla a lik'habohaedreite, 'me ba lokela ho ba le thōko lekaneng. Ho feta moo, tlas'a maemo a tloaelehileng, boko bo itšetlehile ka tsoekere 'me ha a sebelise acid tse mafura. Maemong a sa tloaelehang, tshilong ya dijo, o ka sebelisa 'mele ketone | (a byproduct tsa fella metabolism mafura), haeba ba ne ba ba teng ka bongata ka ho lekaneng.

Brown adipose dinama tse nyenyane tse o ba amohetse lebitso la lona ho tloha 'mala e bakiloeng ke ho vascularization ruileng le mitochondria nang tletse, tse fumanoang ka libaka tse fapa-fapaneng.

Ho ena le ho sebeletsa e le substrate, ho lipids ho lokolloa eneji, le ka ho toba ka mocheso. The mochine tsa moloko lona amanang le metabolism tsa mitochondria ena.

The skeletal thulaganyou e ejection matla a mocheso butswe maemong tseo moo ka kakaretso mocheso oa 'mele o qala ho sekama. Ka lebaka la hypothermia batho secrete-hormone hore susumelletsa ho lokolloa ha acid tse mafura tloha triglycerides eo, le eena, ebe o kenya tshebetsong Thermogenin.

Ho batho, sootho adipose dinama tse nyenyane tse thehoa e qala ka libeke tse 20 ho hōla fetal. Nakong ea pelehi ho ba ka bang 1% ea boima ba 'mele. lera lona teng ho pota methapo ea mali fa oksijene boko le makala a ka mpeng le potolohileng manyeme, adrenals le liphio. Thanks ho sootho adipose dinama tse nyenyane tse ea litho tsa tsoa tsoaloa e le habohlokoa ha supercooled tikolohong e tlaase mocheso.

Ka mor'a ho tsoaloa ha ngoana a qala ho ntshetsa pele e tšoeu adipose dinama tse nyenyane tse, e sootho 'me a qala ho fela. Motho e moholo ha a na sebaka sa ho bokella lona, le hoja e se teng (about 1% ka boima ba 'mele oa mafura a), empa ka lootho tsoakane le tšoeu.