ADH tsim tawm los ntawm qhov twg?

Video: ADH tsim tawm los ntawm qhov twg?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

ADH yog ib yam tshuaj hormones ua nyob rau hauv ib feem ntawm lub hlwb hu ua hypothalamus. Nws yog tom qab ntawd khaws cia thiab tso tawm los ntawm pituitary, ib lub qog me me ntawm lub hauv paus ntawm lub hlwb. ADH ua rau lub raum tswj cov dej tawm hauv cov zis.

Ib yam li ntawd, ADH tsim nyob qhov twg?

ADH tseem hu ua arginine vasopressin. Nws yog ib qho tshuaj hormones ua los ntawm hypothalamus hauv lub hlwb thiab khaws cia hauv cov qog pituitary tom qab. Nws qhia koj ob lub raum kom txuag dej ntau npaum li cas. ADH tas li tswj thiab sib npaug cov dej hauv koj cov ntshav.

Ib sab saum toj no, ADH ua qhov twg hauv lub raum? ADH ua haujlwm hauv lub raum los tswj cov ntim thiab osmolarity ntawm cov zis. Tshwj xeeb, nws ua nyob rau hauv qhov sib txawv ntawm qhov sib txawv tubule (DCT) thiab khaws cov ducts (CT) hlwb.

Kuj paub, dab tsi ua rau kev tso tawm ntawm ADH?

ADH yog tsim los ntawm lub hypothalamus nyob rau hauv lub hlwb thiab khaws cia nyob rau hauv lub posterior pituitary caj pas nyob rau hauv lub hauv paus ntawm lub hlwb. ADH yog ib txwm tso tawm los ntawm pituitary nyob rau hauv cov lus teb rau cov sensors uas pom qhov nce hauv cov ntshav osmolality (tus naj npawb ntawm cov piam thaj hauv cov ntshav) los yog txo cov ntshav ntim.

Dab tsi ua rau vasopressin tso tawm?

Vasopressin tso tawm yog tswj los ntawm osmoreceptors nyob rau hauv lub hypothalamus, uas yog exquisitely rhiab heev rau cov kev hloov nyob rau hauv plasma osmolality. Hauv cov xwm txheej hyperosmolar, osmoreceptor kev txhawb nqa ua rau vasopressin tso tawm thiab stimulation ntawm nqhis dej. Ob lub tswv yim no ua rau nce dej kom tsawg thiab khaws cia.

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