Pituitary: kuyini futhi namuphi umphumela emzimbeni?

Omunye izitho eyinhloko uhlelo endocrine iyona indlala pituitary. Kuyini, usafunda. Eqinisweni, le ngxenye yobuchopho ukuthi unesibopho ukukhiqiza ama-hormone anomthelela ekugcinweni kokuthula umsebenzi zokuzala, ukukhula, efanele umzimba emzimbeni. Noma yimuphi, inombolo ngokweqile noma alanele hormone pituitary ukhiqiza, noma kunjalo kuholela isifo esiyingozi.

Pituitary indlala - kuyini?

Umsebenzi oyinhloko indlala pituitary - ukukhiqiza ama-hormone eliningi eyanele ukuze ekusebenzeni zomzimba womuntu. Ngenxa mthethonqubo Kwenziwa, kanye zamagama melanin, i-hormone gonads nezindlala adrenal, ukuthuthukiswa kanye nokuqapha umsebenzi ukuphoqelelwa, kanye nokukhula. Hlukanisa i-pituitary phambi, nibulale ezingasemuva, Lesisemkhatsini.

Lobe anterior

Tropic hormone ekhiqizwa pituitary anterior, yilesi:

• somatotropin, kubangela ukukhula;
• i-hormone adrenocorticotropic esithinta ukusebenza efanele adrenal;
• thyrotropin - ilawula umsebenzi indlala yegilo;
• gondatropiny (follikulotropin futhi lyuteotropin) sikhuthaze umsebenzi nezindlala ngokobulili, futhi lyuteotropin obangela ukukhiqizwa estrogen kanye androgen, futhi follikulotropin - ukuze kwakhiwe isidoda kwabesilisa kanye nokuthuthukiswa follicle e ezikhiqiza amaqanda e abesifazane;
• prolactin - uhileleke ngokuqondile kwetinhlavu ubisi e lamabele ukuthi unesibopho lactation.

Ukuthuthukiswa izifo ezifana ukubhasha komzimba noma gigantism, acromegaly, Cushing Syndrome, Simmonds-Glinski Isifo esibangelwa ngokweqile noma ukuntula hormone okuyinto obangela ukukhiqizwa indlala pituitary. Izimpawu ze-isifo kungenzeka esemncane, futhi ovuthiwe.

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Esikhathini ingxenyenamba Lesisemkhatsini ezivezwa melanocyte inkanuko hormone. Bazi ukuthi banesibophezelo lesikhumba izinwele, isikhumba kanye retina. Phakathi nenkathi yokukhulelwa, isibonelo, sivame ukuba mphumela, njengoba ukuhwalala kwesikhumba. Lokhu kungenxa ukwanda kwe-melanin, okuyinto unomthwalo kumiswa indlala pituitary. Kuyini futhi kungani kukhona manje ecacile.

Kodwa abantu enesikhumba esimhlophe nezinwele obomvu, lapho "asisho anamathele" tan, kukhona abathwali isakhi sofuzo soguquko lwegciwane singalawuleka nge-hormone i-yokwamukela obhekene lesikhumba.

posterior Lobe

Kuthiwa ama-hormone vasopressin futhi oxytocin akhiqizwa emuva iyizingxenye, okuyilona elisebenzayo futhi indlala pituitary. Kuyini, iziphi imisebenzi yabo? Umsebenti wabo oyinhloko - ukubamba iqhaza ukulawulwa blood pressure, imisipha ithoni, amanzi umzimba. Futhi elalengamele umsebenzi izitho zobulili, imithambo yegazi, kwimisebenzi ethile ezingokwengqondo igazi ekunqandeni.

Kusukela oxytocin engaphansi imisipha wesizalo izindonga, amathumbu, gallbladder, ke ehilelekile ukwabiwa Amapayipi ubisi, etholakala ngaphakathi webele.

Indima vasopressin nakho kubalulekile kakhulu. It ulawula inqubo umchamo kwetinhlavu kanye inqubo amanzi-usawoti emzimbeni. Uma-ke kungazelelwe iyayeka ukusebenza ngaphandle, kuyoba kulethe ukuthuthukiswa izifo ezinjengesifo sikashukela insipidus, okuyinto lihlotshaniswa ukulahlekelwa okusezingeni eliphezulu uketshezi.