Evha uye spermatozoon masero maviri, pamusangano wekuti munhu weramangwana anotanga kukura. Ivo vane ruzivo rwakasiyana-siyana rwehutano hunosarudza kwete chete hutano hwomunhu, asiwo maitiro ake, unhu hwake, hupenyu hwehutano nezvimwe zvakawanda. Nguva yekutanga kwehupenyu hutsva hwevanhu nguva dzose inokonzera kufarira.
Ndeupi musiyano pakati peii nehuta?
Mazai anoumbwa mumuviri wemukadzi kunyange pamusana wekukura kwebumbiro, anoberekwa nemazai zviuru mazana mana, ayo chete 200-400 achakura uye osiya ovary muupenyu hwake hwose, zvichienderana nenhamba yekuenda kumwedzi. Nhengo yechikadzi ndiyo yakakura pane imwe muviri, ine uwandu hwembeu yepoppy, uye muhari yePitri inogona kuonekwa neusingaoni. Iine unhu hwakakomberedzwa, mukati mayo ndiyo cytoplasm uye nucleus. Mukuwedzera, pakarepo mushure mekusiya chivharo, iyo yakakomberedzwa nehutete hwakanyanya hwe epithelium, iyo ichanyatsorambwa sezvo egg inopfuura nepakati pemugwagwa. Evha haikwanise kufamba zvakanaka.
Spermatozoon isero duku. Inotaridzika se tadpole, ine musoro mukuru, iyo yakafanana inogona kuva yakakomberedza kana inogadzirisa, uye muswe muduku. Somugumisiro wepabonde, mukadzi anosvika kumamiriyoni mazana emamiriyoni spermatozoa mumubereki wemukadzi, asi imwe chete, yakasimba uye inokurumidza, inogona kukonzera mazai, ayo achange ava pedo nechitseko chakaibva mberi kwevamwe. Mbeu inotakura ruzivo rwehutano hwababa, iyo ichaendeswa kune vana, inenge 40% yaro inosanganisira zvivako zveDNA zvinogadzirisa zvinoitwa nemwana wako. Spermatozoa inofamba zvikuru kwazvo, muawa iyo inogona kukunda kureba kwemasentimita maviri.
Ndekupi kunotanga kurima?
Evha uye spermatozoon zvinowanikwa, sekutonga, mu fallopian tubes, iyo inobatanidza chibereko uye chevhiri pamwe chete. Spermatozoa inowira mu fallopian tubes kubva mumadzimai, uye inozadza maviri, uye mazai anongosiya rimwe chete mavhavha. Mumaawa mashomanana, mazai achagadzirwa uye anotanga rwendo rwawo kudzokera kuchibereko kuburikidza ne sinuous fallopian tubes. Nzira iyi inotora sero kumazuva anoverengeka.
Munguva ino, masero maviri achabatana, achiumba mwana wemangwana, nhengo dzayo huru. Mazuva manomwe kubva ma10 kusvika mushure mokuberekwa, sero ichabatana ne epithelium, iyo inowedzera uterine cavity, uye kubva iyo inotanga kuumba embryo uye amniotic fluid iyo zvishoma nezvishoma inozadza nzvimbo yose yechibereko uye inobva yava pembeka inopa mwana kusvikira panguva yekuzvarwa kwayo.
Ko mazai anogadzirwa sei?
Imwe nyaya inokosha ndeyekuti mbeu inopinda sei mazai. Kunze, sero rinofukidzwa nehupamhi hwe epithelium, uye chirume chinofanira kuputika epithelium, nokuda kweizvi, inoshandisa muswe. Pasi pemasero aya chinhu chinonamatira, icho chirume chinounganidza uye chinoramba chichienderera mberi. Zvipembenene zvepermatozoa zvinogona kukwikwidza panzvimbo yekutanga, zvisinei chete kuti dzinokurumidza kupfuura dzadzo dzichasvika padokisi uye dzizadzisa hutano hwekuita.
Mangani embeu spermatozoons akamirira zamai?
Evha yakagadzirira kubereka kwenguva yakareba, nguva dzinenge makumi maviri nemaviri. Kana panguva ino pasina spermatozoa iri pedo, kubereka hakuzoitiki. Zvisinei, spermatozoa ivo pachavo vanonyanya kuoma, mumutsara wemukadzi wekuti vanokwanisa kusvika kune mazuva manomwe (paavhareji - mazuva matatu). Izvi zvinowedzera mukana wekuberekwa.
Evha nemumvuri ndiyo masero maviri makuru ayo mwana wako achazopedzisira akura, akasiyana kubva kune mamwe maitiro akasiyana-siyana, anotsigirana uye anowedzera hupenyu hutsva.