2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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. https://en.wikipedia.org › wiki › Alpha_cell
Alpha cell - Wikipedia
nyob rau hauv cov kab mob pancreatic zais cov tshuaj hormone glucagons hauv cov lus teb rau qhov qis qis ntawm cov piam thaj 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.
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.
Puas pancreatic cells tso cov tshuaj hormones?
Tus pancreas tsim cov tshuaj hormones hauv nws cov 'endocrine' cells. Cov hlwb no tau sib sau ua ke hauv pawg hu ua islets ntawm Langerhans thiab saib xyuasdab tsi tshwm sim hauv cov ntshav. Tom qab ntawd lawv tuaj yeem tso cov tshuaj hormones ncaj qha rau hauv cov ntshav thaum tsim nyog.
Dab tsi yog islets ntawm Langerhans zais cia?
Muaj tsib hom hlwb hauv cov islets ntawm Langerhans: beta hlwb secrete insulin; alpha hlwb secrete glucagon; PP hlwb secrete pancreatic polypeptide; delta hlwb secrete somatostatin; thiab epsilon hlwb secrete ghrelin.
Pom zoo:
Cov tshuaj hormones twg tswj cov spermatogenesis?
Sertoli cells Sertoli cells Sertoli cells yog cov hlwb somatic ntawm testis uas yog qhov tseem ceeb rau kev tsim cov qe ntshav thiab spermatogenesis. Sertoli hlwb pab txhawb txoj kev loj hlob ntawm cov kab mob mus rau spermatozoa los ntawm kev sib cuag ncaj qha thiab los ntawm kev tswj hwm ib puag ncig milieu hauv cov tubules seminiferous.
Cov poj niam cov tshuaj hormones tsim nyob qhov twg?
Muaj ob ovaries, ib sab ntawm lub tsev menyuam. Cov zes qe menyuam ua qe thiab cov tshuaj hormones xws li estrogen thiab progesterone. Cov tshuaj hormones no pab cov ntxhais loj hlob, thiab ua rau tus poj niam muaj menyuam. Lub zes qe menyuam tso lub qe ua ib feem ntawm tus poj niam lub voj voog.
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.
Nyob rau hauv lub pancreatic islets?
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.
Puas yog cov tshuaj hormones hauv cov zaub mov ua rau muaj hnub nyoog ntxov?
FDA tam sim no tso cai rau 6 cov tshuaj hormones hauv cov khoom noj, suav nrogestradiol, estriol, testosterone thiab progesterone - cov tshuaj hormones poj niam txiv neej uas tuaj yeem ua rau lub hnub nyoog laus zuj zus. Tus kab mob rog rog ua lub luag haujlwm ib yam nkaus.
