Qhov Tseem Ceeb Qhov Sib Txawv - Thawj Follicle vs Primary Follicle
Nws yog ib qho tseem ceeb kom paub txog cov txheej txheem ntawm folliculogenesis kom nkag siab qhov txawv ntawm Primordial Follicle thiab Primary Follicle; li no, peb yuav xub saib cov txheej txheem no. Tib neeg zes qe menyuam nyob tom qab thiab hauv qab lub raj mis, thiab muaj ob txoj hauv kev ua haujlwm; oogenesis thiab endocrine muaj nuj nqi. Oogenesis yog kev loj hlob ntawm ova los ntawm cov kab mob thaum ntxov. Cov txheej txheem no tseem hu ua lub voj voog zes qe menyuam. Nws tuaj yeem muab faib ua peb theem, uas yog; preovulatory theem, ovulation, thiab postovulatory theem. Thaum lub sij hawm preovulatory theem, primordial follicles pib maturing, tab sis tsuas yog ib tug follicle ua tiav qhov maturation thaum tus so undergo atrophy. Cov txheej txheem ntawm kev loj hlob ntawm cov hauv paus hauv paus rau hauv graafian follicle yog hu ua folliculogenesis. Muaj ntau ntau qhov sib txawv raws li lawv cov theem ntawm kev loj hlob, uas yog; Lub hauv paus follicles, thawj follicle, theem nrab follicle, tertiary follicle, thiab Graafian follicle. Kab lus no piav qhia txog qhov sib txawv ntawm primordial thiab thawj follicles. Qhov sib txawv tseem ceeb ntawm Primordial Follicle thiab Primary Follicle yog qhov primordial follicle yog thawj follicle ntawm folliculogenesis thaum thawj follicle yog qhov thib ob follicle ntawm folliculogenesis.
Primordial Follicle yog dab tsi?
Primordial follicles yog thawj qhov chaw ua me nyuam ntawm zes qe menyuam uas tshwm sim thaum lub sij hawm kev loj hlob ntawm fetal. Cov follicles no tseem tsis muaj menyuam, mus txog rau thaum puberty. Thaum lub sij hawm ntawm kev sib deev kom loj hlob, ob lub zes qe menyuam muaj txog 300,000 primordial follicles, tab sis tsuas yog 400-450 ntawm cov follicles mus txog kev loj hlob thaum lub sij hawm folliculogenesis. Tom qab qhov pib ntawm kev puberty, primordial follicles pib sai sai mus rau hauv thawj molecules. Txhua lub hauv paus follicle muaj cov thawj oocyte uas nyob nrog ib txheej ntawm tes hu ua follicular cells. Thawj oocyte yog nyob rau hauv prophase ntawm thawj meiotic division. Ob qho tib si thawj oocyte thiab follicular cell txheej yog ib puag ncig los ntawm ib daim nyias nyias hu ua basal lamina. Nws ntseeg tau tias cov hlwb follicular txhawb cov oocyte thiab ua kom nws tsis paub qab hau los ntawm secreting oocyte maturation inhibiting factor (OMIF).
Primary Follicle yog dab tsi?
Lub hauv paus pib yog tsim los ntawm cov follicle thaum lub sij hawm folliculogenesis. Thaum lub sij hawm no transformation, lub hlwb follicular hloov mus rau hauv columnar hlwb thiab mus los ntawm mitotic division los tsim multilayered granulosa hlwb. Lub hauv paus follicle muaj qhov loj oocyte thaum piv rau qhov loj ntawm oocyte hauv cov hauv paus hauv paus. Nrog rau kev loj hlob ntxiv ntawm cov hauv paus hauv paus, ib homogenous membrane tshwm ntawm cov granulosa hlwb thiab oocyte. Cov membrane no hu ua zona pellucida. Thawj follicle nrog zona pellucida tam sim no hu ua multilaminate thawj follicle.
Qhov txawv ntawm Primordial Follicle thiab Primary Follicle yog dab tsi?
Kev txhais ntawm Thawj Follicle thiab Thawj Follicle
Primordial Follicle: Lub hauv paus follicle yog thawj follicle ntawm folliculogenesis.
Primary Follicle: Lub hauv paus follicle yog qhov thib ob ntawm folliculogenesis.
yam ntxwv ntawm Primordial Follicle thiab Primary Follicle
Keeb kwm:
Primordial Follicles: Cov hauv paus hauv paus chiv keeb yog tsim thaum lub sij hawm tus me nyuam hauv plab loj hlob thiab tseem tsis tau paub txog mus txog thaum laus
Primary Follicles: Cov hauv paus hauv paus pib yog tsim los ntawm cov hauv paus hauv paus pib tom qab pib ua tiav. Txawm li cas los xij, tsis yog txhua qhov follicle primordial loj hlob mus rau hauv thawj follicle.
Size:
Primordial Follicle: Primordial follicle yog me dua li thawj follicle.
Primary Follicle: Lub hauv paus follicle loj dua li thawj follicle.
Oocyte:
Primordial Follicle: Primordial follicle muaj me me oocyte ncig los ntawm follicular hlwb, Primary Follicle: Lub hauv paus follicle muaj lub oocyte loj dua li cov hauv paus hauv paus thiab nyob ib puag ncig los ntawm granulosa hlwb. Zona pellucida tsuas yog tam sim no nyob rau hauv thawj follicles.
