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Video: Anterior thiab posterior pituitary yog dab tsi?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Ib qho tseem ceeb ntawm cov kab mob endocrine, lub anterior pituitary caj pas (tseem hu ua adenohypophysis lub par sab hauv ) yog lub qog, sab hauv lobe uas ua ke nrog tom qab lobe ( tom qab pituitary , los yog neurohypophysis) ua rau pituitary caj pas qog (hypophysis).
Tsis tas li ntawd, qhov txawv ntawm lub caj pas anterior thiab posterior pituitary yog dab tsi?
Thaum lub anterior pituitary caj pas cell synthesize qee cov tshuaj hormones uas secreted rau hauv cov ntshav, nyob rau hauv lub posterior pituitary cov tshuaj hormones tsis tsim tawm. Cov qab pituitary khw muag khoom thiab tso tawm ob yam tshuaj hormones. Lawv tau muab coj los ua ke hauv hypothalamus.
Ib yam li ntawd, dab tsi yog lwm lub npe rau lub qab lobe ntawm lub pituitary? Cov tom qab pituitary (lossis neurohypophysis) yog posterior lobe ntawm pituitary qog uas yog ib feem ntawm cov kab ke endocrine. Cov qab pituitary tsis yog glandular raws li yog anterior pituitary caj pas.
Kuj paub, dab tsi cov tshuaj hormones secreted los ntawm anterior thiab posterior pituitary?
Lub Hom Phiaj Kawm
Rooj 1. Pituitary Hormones | ||
---|---|---|
Pituitary lub cev | Cov tshuaj hormones cuam tshuam | Tshuaj lom neeg |
Sab hauv | Luteinizing hormone (LH) | Glycoprotein hmoov |
Tom qab | Antidiuretic hormone (ADH) | Peptide |
Tom qab | Oxytocin | Peptide |
Yuav ua li cas hypothalamus sib txuas lus nrog lub anterior thiab posterior pituitary?
Cov hypothalamus saib xyuas ntau yam hauv lub cev. Kev sib txuas lus nruab nrab ntawm hypothalamus thiab cov anterior pituitary caj pas tshwm sim los ntawm cov tshuaj (tso cov tshuaj hormones thiab inhibiting cov tshuaj hormones) uas yog tsim los ntawm lub hypothalamus thiab xa mus rau anterior pituitary caj pas los ntawm cov hlab ntsha hauv infundibulum.
Pom zoo:
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Raws li cov ntshav qib ntawm testosterone nce, qhov no pub rov qab los txhawm rau tsim cov tshuaj gonadotrophin-tso tawm los ntawm hypothalamus uas, dhau los, inhibits zus tau tej cov luteinising hormone los ntawm pituitary caj pas
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Kev Kawm Lub Hom Phiaj Cov Ntsiab Lus 1. Pituitary Hormones Pituitary lobe Koom nrog cov tshuaj hauv chav kawm Tshuaj Qib Auteior Luteinizing hormone (LH) Glycoprotein Posterior Antidiuretic hormone (ADH) Peptide Posterior Oxytocin Peptide
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Amiodarone
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Nyob rau hauv qhov tseeb, lub posterior pituitary yog ib tug projection ntawm lub hypothalamus. Nws tsis tsim nws tus kheej cov tshuaj hormones, tab sis tsuas yog khw muag khoom thiab tso cov tshuaj hormones tsim los ntawm hypothalamus, hos lub hauv ntej pituitary ua thiab zais nws cov tshuaj hormones
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Lub hauv ntej pituitary ua xya yam tshuaj hormones. Cov no yog kev loj hlob hormone (GH), cov thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), follicle-stimulating hormone (FSH), luteinizing hormone (LH), beta endorphin, thiab prolactin