![Lub luag haujlwm ntawm infundibulum thiab cov nkoj portal yog dab tsi? Lub luag haujlwm ntawm infundibulum thiab cov nkoj portal yog dab tsi?](https://i.answers-medical.com/preview/medical-health/13923140-what-is-the-role-of-the-infundibulum-and-the-portal-vessels-j.webp)
Video: Lub luag haujlwm ntawm infundibulum thiab cov nkoj portal yog dab tsi?
![Video: Lub luag haujlwm ntawm infundibulum thiab cov nkoj portal yog dab tsi? Video: Lub luag haujlwm ntawm infundibulum thiab cov nkoj portal yog dab tsi?](https://i.ytimg.com/vi/U_z7sJM_6vk/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Nyob rau hauv infundibulum yog tus choj ntawm capillaries uas txuas cov hypothalamus mus rau lub caj pas pituitary. Hypothalamic tso tawm thiab cuam tshuam cov tshuaj hormones taug kev los ntawm thawj lub capillary plexus mus rau portal leeg , uas nqa lawv mus rau hauv lub caj pas pituitary.
Hauv qhov no, dab tsi yog qhov tseem ceeb ua haujlwm ntawm hypophyseal portal leeg?
Cov hypophyseal chaw system yog cov ntshav nkoj hauv microcirculation ntawm lub hauv paus ntawm lub hlwb, txuas cov hypothalamus nrog rau sab xub ntiag pituitary caj pas . Nws lub ntsiab muaj nuj nqi yog thauj sai thiab sib pauv cov tshuaj hormones ntawm hypothalamus arcuate nucleus thiab sab xub ntiag pituitary caj pas qog.
Ib tus kuj tseem yuav nug tau tias, dab tsi yog txoj haujlwm ntawm lub caj pas pituitary? AKA infundibulum lossis pituitary stalk, qhov infundibular stalk yog lub raj zoo li cov qauv uas txuas rau sab nraub qaum tom qab mus rau hypothalamus . Nws tso cai rau cov tshuaj hormones tsim tawm hauv hypothalamus xa mus rau tom qab lub caj pas pituitary rau tso rau hauv cov hlab ntshav.
Tom qab ntawd, ib tus kuj tseem tuaj yeem nug, cov tshuaj hormone twg raug tso tawm rau hauv cov chaw ncig?
GnRH yog ua ke nyob rau hauv hypothalamus thiab zais rau hauv lub hypophyseal lub portal qhov twg nws mus rau anterior pituitary caj pas. Ntawm no nws ua ntawm lub GnRH receptor rau stimuli cov tso tawm ntawm LH thiab FSH los ntawm cov kab mob gonadotrope.
Yuav ua li cas hypothalamus tswj lub anterior pituitary?
Txhua lub vertebrate lub hlwb muaj a hypothalamus . Cov hypothalamus txuas cov hlab ntsha thiab endocrine systems los ntawm txoj kev pituitary caj pas qog. Nws muaj nuj nqi yog txhawm rau tso cov tshuaj hormones thiab txwv cov tshuaj hormones uas txhawb lossis txwv (zoo li lawv lub npe cuam tshuam) kev tsim cov tshuaj hormones hauv anterior pituitary caj pas.
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