Indlala yePituitary: iyini nokuthi yenzelwe ini

-Delile

• Yenzelwe ini

Indlala ye-pituitary, eyaziwa nangokuthi i-pituitary gland, yindlala etholakala ebuchosheni ebhekele ukukhiqizwa kwamahomoni amaningana avumela futhi agcine ukusebenza kahle komzimba.

Umsebenzi we-pituitary gland ulawulwa yi-hypothalamus, okuyisifunda sobuchopho esibhekele ukubona isidingo somzimba nokuthumela imininingwane ku-pituitary ukuze izinqubo zomzimba zilawulwe. Ngakho-ke, i-pituitary yenza imisebenzi eminingana emzimbeni, njengokulawulwa kwemetabolism, ukukhula, ukuya esikhathini, ukukhiqizwa kwamaqanda nesidoda kanye ne-corticosteroids yemvelo.

Yenzelwe ini

I-pituitary gland ibhekele imisebenzi ehlukahlukene yomzimba, efana ne-metabolism, ukuya esikhathini, ukukhula nokukhiqizwa kobisi emabeleni, isibonelo. Le misebenzi yenziwa kusukela ekukhiqizweni kwamahomoni amaningana, okuyinhloko:

• GH, eyaziwa nangokuthi i-hormone yokukhula, inesibopho sokukhula kwezingane nentsha futhi ibamba iqhaza elikhulu ekuguqulweni komzimba. Ukwanda kokukhiqizwa kwe-GH kubangela i-gigantism nokwehla komkhiqizo wayo, ubufushane. Funda kabanzi nge-hormone yokukhula;
• ACTH, ebizwa nangokuthi i-adrenocorticotrophic hormone noma i-corticotrophin, ngoba ikhiqizwa kwizindlala ze-adrenal, ngaphansi kwethonya le-pituitary gland, futhi iholela ekukhiqizeni i-cortisol, eyi-hormone ebhekele ukulawula ukuphendula kwengcindezi nokuqinisekisa ukuguquguquka komzimba umzimba ezimweni ezahlukahlukene. Bona lapho kungahle kube khona ukukhiqizwa okukhulu noma okuncane kwe-ACTH;
• I-Oxytocin, eyi-hormone ebhekele ukucindezela kwesibeletho ngesikhathi sokubeletha kanye nokukhuthaza ukukhiqizwa kobisi, ngaphezu kokwehlisa umuzwa wokuxineka nokulwa nokukhathazeka nokudangala. Yazi imiphumela esemqoka ye-oxytocin emzimbeni;
• I-TSH, eyaziwa nangokuthi i-hormone evuselela i-thyroid, ngoba inesibopho sokuvuselela i-thyroid ukukhiqiza ama-hormone e-T3 ne-T4, abalulekile ekusebenzeni kahle kwe-metabolism. Funda kabanzi nge-TSH;
• FSH futhi LH, eyaziwa njenge-follicle stimulating hormone ne-luteinizing hormone ngokulandelana. La mahomoni asebenza ngqo ngokushukumisa ukukhiqizwa kwamahomoni abesifazane nabesilisa, ngaphezu kokukhiqizwa nokuvuthwa kwesidoda emadodeni namaqanda kwabesifazane.

Izimpawu zokungasebenzi kahle kwendlala yamapayipi zingabonakala ngezimpawu ezivela ngokuya ngehomoni ekhiqizwe umkhiqizo wayo yanda noma yehla. Uma kukhona ushintsho maqondana nokukhiqizwa nokukhululwa kwe-GH, ngokwesibonelo, kungaqashelwa ukukhula kwehaba kwengane, okwaziwa njenge-gigantism, noma ukungakhuli, okwenzeka ngenxa yokwehla kwemfihlo kwaleli hormone, isimo eyaziwa ngokuthi i-dwarfism.

Ukwehla noma ukuntuleka kokukhiqizwa kwamahomoni amaningi ayalelwe yi-pituitary kungaholela esimweni esibizwa nge-panhipopituitarismo, lapho kuthinteka khona imisebenzi eminingi yomzimba, futhi umuntu kufanele enze okunye esikhundleni se-hormonal ukuze impilo yakhe igcinwe. Funda ukuthi ungayibona kanjani i-panhipopituitarism nezimpawu eziyinhloko.