Amahomoni e-Pituitary and pituitary. Impembelelo yabo kumzimba womntu.

I-pituitary gland yintsimi ye-endocrine esekelwe kwinqanaba le-medullary. Ubukhulu bayo buncinane, malunga nobukhulu bepea. I-pituitary gland iyahlula ibe ngamacandelo amathathu: emva komva, phakathi kunye naphakathi. Elinye le-lobes liyi-gland elizimeleyo kwaye livelise i-hormone yalo.

IiHormoni ze-lobe zangaphandle ze-pituitary gland ziprotein. Amahomoni ayisithandathu ale qhekeza aveliswa ngendlela ecocekileyo ngokubhekiselele kwimizimba yamachiza. Namhlanje ukubunjwa kunye nesakhiwo se-hormone ye-lobe yangaphambili ifundwe kakuhle. Nangona inani elithe ngqo lama-hormone afihliweyo, ayikaziwa.

IiHormoni ze-pituitary gland, okanye kunoko i-lobe yangaphambili, zibalulekile kwiinkqubo ezininzi ezenzeka emzimbeni. Eyona nto ibaluleke kakhulu yile hormone yokukhula. Uxanduva olukhulu kunamanye amahomoni ekukhuleni ngokugcwele komzimba. Ukuba ususa i-pituitary gland, ngoko ukukhula komntu kuya kumisa. Ngokutsho kwezilingo, kwafunyaniswa ukuba ukongezwa okongeziweyo kwe-hormone yokukhula kwizilwanyana eziselula kubangela ukukhawuleza kokukhula kwabo. Xa umntu emkela le hormone kukhokelela ekuvuseleleni ukukhula komzimba. I-hormone ye-Growth inceda ukunciphisa ukuphuma kwe-nitrogen emzimbeni ngenxa ye-metabolism. Oku kubangela ukubunjwa ngokukhawuleza kwezicubu ezintsha.

IiHormoni zesigwegwe se-pituitary kunye nemisebenzi yazo zifundwa kakuhle ngabantu. Ukuphululwa kobungqina babo kubangele ukuphazamiseka emzimbeni. Ukungabikho kokukhula kwehommone kuholele ekupheleni kokukhula, kwaye ubuninzi bawo bangela i-gigantism. Ukuveliswa kwe-hormone engafanelekanga yiphumo lokuphuhliswa okungafaniyo kwamalungu. IiHormoni ze-pituitary gland zithintela isimo se-genitourinary system kwintombi.

I-hormone ye-thyrotropic, eyenza i-pituitary gland, iyashukumisa umsebenzi oqhelekileyo we-thyroid gland. Xa ususa i-pituitary gland ayenzi imisebenzi yayo.

I-adrenocorticotropic hormone iyimfuneko kumsebenzi oqhelekileyo wee-adrenal glands. Kodwa ekungabikho kwintsimbi ye-pituitary bayaqhubeka nokuqhuba imisebenzi yabo. Kodwa inani le-hormone elilawula umlinganiselo we-sodium ne-potassium emzimbeni womntu wehla.

Iimononi zeGonadotropic zibandakanyeka kwiinkqubo ezimbini. Inqubo yokuqala kukuthatha inxaxheba kwinkqubo yokuveliswa kweqanda kumzimba wesibini kunye nesidoda kumzimba wesilisa. Okwesibini kukho ukuphuhliswa kwamahomoni eesetyhini kunye namadoda. Uninzi lwa ma hormone lubangela ukukhula komzimba, okukhawuleza kunokukhula komzimba. Ukususwa kwegciwane le-pituitary kumisa umsebenzi wokuzala kwaye kunciphise kakhulu umnqweno wesini.

IiHormoni ze-pituitary gland zithatha inxaxheba kwinkqubo yokusabalalisa emzimbeni we-carbohydrate edla ukutya. Badlala indima ebalulekileyo kwi-metabolism. I-adrenocorticotropic hormone kunye ne-hormone yokukhula zibaluleke kakhulu apha. Zichaphazela umsebenzi we-pancreas kunye nokuveliswa kwe-insulin. Ukungabi nalutho kwe-insulin kubangela isifo esibi, esaziwa njengesifo sikashukela.

I-lobes ephakathi kunye neyasemva kwe-pituitary gland ivelisa i-hormone ethatha inxaxheba kwimisebenzi ebalulekileyo yomzimba. I-hormone i-oxytocin idlala indima ebalulekileyo ekuqhekekeni kwesibeleko ngexesha lokubanjwa, kwiindonga zesisu, isisu kunye ne-gallbladder. I-hormone vasopressin inoxanduva lokumisela umbane okhutshwe ngeentso. Ukupheliswa komsebenzi we-post lobe kuholela ekuthiwa yi-diabetes insipidus. Kule meko, umzimba ulahlekelwa ngumthamo omkhulu wamanzi (ukuya kuma-alitha ama-38), okufuneka ukuba rhoqo uzaliswe ngokulinganayo.

IiHormoni zengxube ye-pituitary zidlala indima enkulu ebomini bomzimba womntu. Bathatha inxaxheba kwiinkqubo ezininzi ezenzeka emzimbeni, kwaye zichaphazela umsebenzi wamalungu amaninzi. Ukususwa kwe-pituitary kukhokelela kwimiphumo engapheliyo kunye nokungasebenzi ngendlela ebalulekileyo yendalo yonke.