2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Pancreatic islets, tseem hu ua islets ntawm Langerhans, yog pawg ntawm cov hlwb hauv koj tus txiav txiav. Lub pancreas yog ib yam kabmob uas tsim cov tshuaj hormones los pab koj lub cev zom thiab siv zaub mov. Islets muaj ntau hom hlwb, suav nrog beta hlwb uas ua rau cov tshuaj insulin.
Kev ua haujlwm ntawm pancreatic islets yog dab tsi?
Cov kab mob endocrine yog tsim los ntawm cov kob me me ntawm endocrine (endo=hauv) cov hlwb. Cov Islands tuaj hu ua cov islets ntawm Langerhans. Cov hlwb endocrine no tso cov tshuaj hormones xws li insulin thiab glucagon mus rau hauv cov ntshav, uas tswj cov qib qabzib (glucose) hauv cov ntshav.
Yuav ua li cas cov tshuaj hormones secreted los ntawm pancreatic islets?
Cov tshuaj hormones tsim tawm hauv cov islets ntawm Langerhans yog insulin, glucagon, somatostatin, pancreatic polypeptide, thiab ghrelin. Cov tshuaj hormones pancreatic secreted los ntawm alpha, beta, delta, gamma, thiab epsilon cells.
Tus qauv ntawm pancreatic islets yog dab tsi?
Cov kab mob endocrine tau teeb tsa rau hauv cov islets ntawm Langerhans, suav nrog tsib lub cell subtypes: α, β, δ, ε, thiab PP hlwb uas zais glucagon, insulin, somatostatin, ghrelin, thiab pancreatic polypeptide, feem. Islet cells tsuas yog 2% ntawm cov neeg laus pancreatic mass.
Cov hlwb twg pom nyob hauv cov islets ntawm pancreatic?
Cov islets ntawm Langerhans muaj alpha, beta, thiab delta hlwbuas tsim glucagon, insulin, thiabsomatostatin, raws. Ib hom plaub ntawm islet cell, F (los yog PP) cell, nyob ntawm qhov chaw ntawm cov islets thiab secretes pancreatic polypeptide.
Pom zoo:
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Puas pancreatic islets tso cov tshuaj hormones?
Cov kab mob endocrine muaj cov kab mob pancreatic, uas tso tawm glucagons thiab insulin . Alpha cells Alpha cells Alpha cells (α-cells) yog endocrine cells hauv pancreatic islets ntawm pancreas . Lawv tsim txog li 20% ntawm tib neeg islet hlwb synthesizing thiab secreting peptide hormone glucagon, uas elevates cov piam thaj hauv cov ntshav.
Puas yog pancreatic islets endocrine?
Cov kab mob endocrine muaj cov kab mob pancreatic, uas zais glucagons thiab insulin . Alpha cells Alpha cells Alpha cells (α-cells) yog endocrine cells hauv pancreatic islets ntawm pancreas . Lawv tsim txog li 20% ntawm tib neeg islet hlwb synthesizing thiab secreting peptide hormone glucagon, uas elevates cov piam thaj hauv cov ntshav.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
Leej twg yog bennie nyob rau hauv lub raisin nyob rau hauv lub hnub?
Beneatha Younger ("Bennie") Mama tus ntxhais thiab W alter tus muam. Beneatha yog ib tug neeg txawj ntse. Nees nkaum xyoo, nws mus kawm ntawv qib siab thiab kawm tau ntawv zoo dua li lwm cov Tsev Neeg Hluas. Qee qhov ntawm nws tus kheej kev ntseeg thiab kev xav tau ua rau nws nyob deb ntawm niam txiv.
