I-Pineal gland

I-pineal gland (i-epiphysis) ibhekisela kwi-epithalam ephakathi kwe- midbrain, kwaye ihlala kwindawo engapheliyo eyahlula iinduli eziphezulu ze- midbrain . Yintoni loo mzimba kunye nendima yawo kumzimba womntu?

Njengezinye izitho zomntu, i-pineal gland ayizange ifundwe ngokupheleleyo, kodwa indima yayo ebalulekileyo ekusebenzeni komzimba wethu ayiphikisiwe ngabani na. Ubume beli gland linokukhupha i-ovoid, i-globular kwaye idibanise. Isisindo somyinge wegland siyakhula kuphela ngonyaka wokuqala wokuphila ukususela kwi-7 ukuya kwi-100 mg. Xa uneminyaka eyi-10, ubunzima bayo buphindwe kabini, emva koko awutshintshi ubomi. Ubunzima bayo kubantu abadala bu malunga no-0.2 g, kwaye ubude buyahlukahluka ukusuka kwi-8 ukuya kwi-15 mm. Ububanzi beli lungu buyahlukahluka kubantu abahlukeneyo: ukusuka ku-6 kuya kwe-10 mm, kunye nobukhulu-ukusuka ku-4 ukuya kwi-6 mm. Kwisiseko se-gland, ejongene nesigxina se-ventricle 3, kunokudakumba okuncinci. Ingqungquthela yepineal ihlanganiswe ngaphandle kunye ne-capsule ye-tissue capsule, equle inani elininzi lamaplassi egazi anastomose kunye. Ukusuka kule capsule ngaphakathi emzimbeni ungena kwi-trabeculae, equkethe izicubu ezinxibelelwano. Bahlula i-parenchyma yomzimba wepineal kwi-lobules ehlukeneyo. Igazi linikezelwa kwingqungquthela ngamatriri e-posterior kunye ne-upper cerebellar. Iimvumba zayo zixhunyiwe kwi-vein enkulu yeengqondo okanye iindleko zayo. Amafayili anomzwelo angena emithanjeni yegazi kwiifom zeli candelo.

I-parenchyma yale ngqungquthela iqukethe izixhobo zeselula, eziqulethwe kuyo imali enkulu. Zizona zisele ezikhethekileyo ezibizwa ngokuba yi-pinealocytes (i-pineocytes). Ngaphantsi kwenani, i-parenchyma iqukethe i-gliatae (iil cell). Kwi-pineal gland kubantu abadala kwaye ngokukodwa kubantu abadala, iifom zefomu engavumelekanga (izidumbu zesanti) zifumaneka rhoqo. Ezi ntlawulo zifaka isandla kwi-gland into yokuba itekisi ye- spruce okanye isithelo se-mulberry. Kungenxa yokubonakala kwayo ukuba le gland yafumana igama layo. Inxaxheba ye-endocrine ye-pineal gland ikunjalo ukuba iiseli zayo zithumela izinto ezikhethekileyo ezivimbela umsebenzi we-pituitary gland. Umsebenzi wakhe usebenza ngokukhethekileyo ngaphambi kobuntwaba. Le ngqungquthela idlala indima ecacileyo kwimimiselo malunga naluphi na uhlobo lwe-metabolism emzimbeni womntu. Imisebenzi eyaziwa ngokuqhelekileyo kunye nemisebenzi enjenge-pineal gland njengendlela yokuvimbela ukukhululwa kwamahomoni okukhula kunye nokuphuhliswa kwamathumba, impembelelo ekuphatheni ngokwesini kunye nophuhliso lwezesondo.

Isihloko esithi "usebenziso lwe-pineal gland" lugxininiswa ngokukhawuleza kungekudala. Kuba abantu abaninzi akucaci kakuhle indlela yokwenza umgudu wokubambisa kwangaphakathi kwaye kutheni? Abalandeli abaninzi beyeza kukholelwa ukuba i-pineal gland ayizalisekanga kuphela imisebenzi yayo yomzimba (uphuhliso lwe-melatonin, i-hormone yokukhula, ukulawulwa kwemigangatho yezinto eziphilayo zomzimba), kodwa yindawo apho umphefumlo ungena khona (kwaye uphume) umzimba. Bakugxininisa ukuba i-pineal gland, ukuqhutyelwa kwayo okungafunyanwa ngabagqirha abakhethekileyo ngokusebenzisa ukusetyenziswa kakuhle, kunokunika umntu ukulawula isikhundla sakhe kwisithuba nangethuba.

Nangona iingcali zingenakuqinisekisa okanye zichasise izimvo zabanikeziwe ngabanye abantu, bayaqaphela ukuba unyaka wonke abantu abaninzi banotshintsho yangempela kwi-pineal gland. Abanye bathi oku kubonisa ukuvela kohlobo olutsha lomntu, nangona konke oku akunako ukuqinisekiswa okwangoku.

Abaninzi abaxhasi beengcamango "zokusebenza kweengqungquthela ze-pineal" banikezela abathengi babo iindlela ezahlukahlukeneyo ngokusekelwe kwimikhwa yamandulo, oogqirha abacebisi ukuba baveze imizimba yabo kwiimvavanyo ezingathandekiyo nezingenakuqinisekiswa.