Adipose nama da iri

Nauka mai ƙanshi abu ne na haɗi na musamman da ke aiki a matsayin babban ajiya don mai mai kyau a cikin hanyar triglycerides. A cikin mutane, akwai nau'o'i biyu: launin fari da launin ruwan kasa. Lambarta da rarraba su ne mutum.

Nauyin mai laushi ya yi aiki guda uku: haɓakar thermal, matashi na inji kuma, mafi mahimmanci, tushen makamashi. Hakanan, shi ne kai tsaye a karkashin fata kuma shine babban iskar zafi na jikin mutum, saboda yana haifar da zafi sau uku mafi muni fiye da sauran kyallen takarda. Matsayin da yake rufewa ya dogara da kauriyar wannan Layer. Alal misali, mutumin da ke da kaso 2-mm na kitsen mai zurfi zai ji dadi kamar yadda zai yiwu a 15 ° C, yayin da 1 mm-16 ° C. Bugu da ƙari, nama mai laushi ya kewaye sassan jikin ciki kuma ya ba su kariya daga rushewa.

Alal misali, an samo shi:

- a kusa da zuciya;

- a cikin kodan;

Cika kusa da gidajen abinci;

- a cikin idon ido, a baya da ido, da dai sauransu.

A matsayin babban ɗakin samar da makamashi, yana samar da kayayyaki tare da yawan amfani. Sakamakon haka, ana iya samo karin makamashi daga gwargwadon kitsen (9 kcal) fiye da gwargwadon carbohydrates (4 kcal) ko furotin (4 kcal). Bugu da ƙari, idan mutum ya adana yawan makamashi a cikin nau'i na carbohydrates, karuwa a cikin taro zai dame shi da motsa jiki.

Duk da haka, akwai wasu hane-hane akan amfani da mai a matsayin "man fetur". Saboda haka, takalma da ke aiki da farko ta hanyar tafiyar da anaerobic (misali, erythrocytes) ya kamata karbi makamashi daga carbohydrates kuma ya kamata ya wadata su. Bugu da ƙari, a ƙarƙashin yanayi na al'ada, kwakwalwa yana dogara ne da glucose kuma baya amfani da acid fat. A halinda, na rayuwa, zai iya yin amfani ketone jikuna (a byproduct na bai cika ba mai metabolism), idan sun kasance ba a manyan isa yawa.

Yawan abu mai launin launin ruwan kasa ya sami sunansa saboda launi da lalacewar da aka samu ta hanyar fascularization mai karfi da kuma cike da mitochondria, wanda za'a iya samuwa a wurare daban-daban.

Maimakon yin aiki a matsayin madauri, lewatsun a cikin shi saki makamashi a cikin yanayin zafi. Tsarin aikinta na hade da metabolism a cikin mitochondria.

An yi amfani da tsarin biochemical na makamashi a cikin yanayin zafi a cikin waɗannan lokuta yayin da yanayin jiki ya fara ragewa. Dangane da cututtukan jiki a cikin jikin mutum, an fitar da hormones wanda ke motsa sakin acid mai daga triglycerides, wanda ke kunna thermogenin a gaba.

A cikin mutane, samin launin launin launin ruwan kasa yana farawa a makon 20 na ci gaba da intrauterine. A lokacin haihuwa, kimanin kashi 1% na nauyin jiki. Layer tana kusa da jini wanda yake samar da oxygen zuwa kwakwalwa da gabobin ɓangaren ciki, kuma yana kewaye da pancreas, adrenals da kodan. Godiya ga launin launin launin ruwan kasa, kwayoyin da ke jikin jarirai ba su da karfin jiki a cikin yanayin da zazzabi.

Bayan haihuwar, yaron ya fara samarda nama mai laushi, kuma launin ruwan kasa zai fara ɓacewa. Wani balagagge ba shi da wurare na tarinta, ko da yake ta kasance (game da 1% na yawan kitsen mai), amma an haɗe shi da farin.