Bangaki kumaseli emzimbeni womuntu? Yikuphi abaluleke kakhulu?

Yini ngomzimba womuntu laziwe? Bangaki kumaseli emzimbeni womuntu omdala? Njengoba zikhula nokuthuthukisa, ukuthi ziyini? Ezweni, ososayensi bazama ukuxazulula lezi puzzle.

Kuyini yeseli?

Ososayensi basafunda isitshalo eziphilayo, izilwane, abantu. Cage - Lena ingxenye yazo emincane yimuphi umzimba. Emzimbeni womuntu kukhona okuningi kuka-100 trillion. I alaziwa inani eliqondile. Bangaki kumaseli emzimbeni womuntu sifa nsuku zonke? Inani kuncike ukusetshenziswa ehlosiwe. Ngokwesibonelo, e-epithelium emathunjini - 70 wamabhiliyoni ngosuku, igazi - 2 billion, futhi ethukile uhlelo amaseli musa kabusha ngemva kokufa.

Ngokokuqala ngqá kwamaseli ezitholakala 1665 Robert Guk. Waqaphela ukuthi amadala umuntu, kulapho yalezi timphawu tesakhiwo emzimbeni wakhe. , потому что они отмирают и рождаются ежеминутно. Akunakwenzeka ukubala inani lamaseli emzimbeni womuntu, ngoba bezalwa futhi bafe njalo ngomzuzu.

Sakhiwo umsebenzi

Asikwazi ukusho okuningi kumaseli emzimbeni womuntu, kodwa ososayensi Yazi ngokuqinisekile ukuthi banayo isakhiwo eziyinkimbinkimbi. Iningi aqukethe:

• core, ibizwa ngokuthi amaseli inhliziyo;
• cytoplasm;
• nucleolus;
• mitochondria;
• igobolondo core;
• kumiswa endoplasmic reticular;
• ribosomes;
• lysosomes;
• imigodi futhi ikhule ezimbotsheni;
• cell ulwelwesi, iqinisekisa ubuqotho, ulawula ibhalansi intracellular.

Imisebenzi ephathelene ne-synthesis izinto. amaseli yezindlala ukukhiqiza ama-hormone noma enzyme. I nezindlala mammary ukukhiqiza ubisi, amanyikwe - insulini. Ezinye musa kwemiqondo, isib imisipha amaseli.

Kungakhathaliseki ukuthi bangaki kumaseli emzimbeni womuntu, abakwazi ukuphila ngaphandle kwalo. Amaseli izakhi KaMose yakha umzimba owodwa.

egazi

Yini awuketshezi eliya ngemithambo abantu? Liqukethe plasma bese izakhi yeselula:

• amaseli abomvu egazi - amangqamuzana abomvu egazi;
• platelet;
• egazi amhlophe - amangqamuzana amhlophe egazi.

Kokuqukethwe kwabo kuncike ukuminyana futhi umbala igazi. It lucwaningo ukudluliswa kwamakhemikhali emzimbeni. кровяных клеток. umzimba womuntu omdala egazi yizigidi eziyizinkulungwane 50. Kumayelana 5.5 amalitha.

sombala amaseli

Melanocytes emzimbeni womuntu obangela umbala kwesikhumba, izinwele, amehlo futhi abanye izitho zangaphakathi. amaseli okunjalo imumathe ngaphakathi zombala cytoplasm, okubangela kungani leso senzo sabo. Melanocytes futhi yenza umsebenzi okuvikela emisebe yama-UV ngokushintsha umbala sibe nsundu banesibopho. Amaseli we uhlobo bok.

Amaseli isimiso sezinzwa

Lona ungomunye waleyo ngeke ibuyiselwe ngemva kokufa. Igama lazo ngokwesayensi - izinzwa. Umsebenti wabo - ukucubungula futhi udlulise ulwazi pulses kagesi ezivezwa kubo. Izinzwa zihlukaniswe izinhlobo eziningana:

• sezinzwa (obhekene zasabela kanjani ukukhanya, umsindo);
• motor;
• interneurons.

Isakhiwo kuhlanganisa umzimba cell, dendrite, Axon. Ngokusho isakhiwo yabo, nazo zihlukaniswe ngamaqembu eziningana. Isimiso sezinzwa somzimba womuntu liqukethe yizigidi eziyizinkulungwane 10 izinzwa. Njalo ngonyaka mayelana 10,000 afe futhi ayisekho walulama. Omdala umuntu, izinsalela kancane.

Amagciwane Engeke Esaba amaseli

Bangaki kumaseli emzimbeni banesibopho ukukhiqizwa kabusha? Ziyakwazi ezimbili izinhlobo, bahlukene zibe amadoda - isidoda - nowesifazane - amaqanda. Owesilisa usayizi cell zokuzala inkulu kakhulu kunangendlela insikazi, ngoba iqukethe imali enkulu cytoplasm. Bakhandwa eyaqala ukutholwa ngawo 1677, kodwa imigomo Kuvele ekuqaleni kwekhulu le-19.

Nakuba kungenakwenzeka ukusho ngokuthe ngqó ukuthi zingaki kumaseli emzimbeni womuntu, abacwaningi wabheka cishe yonke yohlobo lwazo. iqhaza wabo ngqo exhumene zaba khona ekuphileni kule mbulunga enguMhlaba. Ososayensi uzama ukufunda indlela yokutshala amangqamuzana omuntu laboratories zocwaningo. Mhlawumbe bangase baphumelele.