12 Inkolelo yesidoda esikholelwa ngokubanzi ukuba ziyinyani

Umxholo

• 1. Isidoda sidada njengeembaleki zeOlimpiki
• 2. Isidoda esijiyileyo sisidoda esichumileyo
• Indlela inkqubo yokuzala yabasetyhini inceda ngayo isidoda:
  
• 3. Isidoda siphila ixesha elifutshane emva kokukhululwa
• 4. Isidoda sifuna ukuya ngqo kwiqanda
• Indlela eya kwisichumiso: apho isidoda kufuneka sidlule ngaphambi kokufikelela kwiqanda
  
• 5. Isidoda sihlala sichuma kwaye sisempilweni kubomi bonke bendoda
• 6. Amagqabantshintshi amabi kubalo lwakho lobudoda
• 8. Isidoda ngasinye siphilile kwaye siyasebenza
• 9. I-pre-cum ayinakukukhulelwa
• 10. Ukudlula kwamadlozi kungcono xa uzama ukukhulelwa
• 11. Isidoda yindawo yamandla eprotein
• 12. Iphayinaphu yenza incindi yobudoda yakho ingummangaliso
• Kubalulekile ukugcina inzululwazi phambili kweentsomi

Kwisivakalisi esinye, ibhayoloji yesini ingabonakala ilula kunokusebenzisa isikweko esithi "iintaka neenyosi". Isidoda siyakhutshwa kwilungu lobudoda, singene kwilungu lobufazi, kwaye siqubhe indlela yokuzala de sifike kwiqanda ukuyichumisa.

Kodwa ayisiyonto ilula kangako.

Kwisithuba seminyaka engama-300 eyadlulayo, yathathelwa ingqalelo njengeyona nto ibalulekileyo yenzululwazi xa oososayensi beza noluvo lokuba umntu omncinci opheleleyo uhlala entlokweni yesidoda ngasinye.

Ngethamsanqa, njengoko umzimba womntu uguqukile ngaphezulu kwamawaka eminyaka ukonyusa amandla okuzala, kunjalo ke nangokuqonda kwethu kwesayensi malunga nesidoda. Kodwa uninzi lwethu lusakholelwa kwizinto ezingezizo ezesayensi, kunye neentsomi zesidoda esimi ixesha elide. Nazi ezilishumi elinesibini eziqhelekileyo.

1. Isidoda sidada njengeembaleki zeOlimpiki

Ibali eliqhelekileyo lelokuba izigidi- naphi na ukusuka kwizigidi ezingama-20 ukuya kwezingama-300, ukuba zichaneke- isidoda sobugorha sibhukuda kukhuphiswano omnye nomnye ukuze sibe sisinhanha esincinci esingena kwiqanda.

Hayi.

Okokuqala, isidoda asidadi ngokuthe ngqo- ubukhulu becala. Rhoqo amandla okuhamba kwesidoda, awaziwa njenge-motility, ahlelwa kwiqela elinye lamaqela amathathu:

• inkqubela phambili: ukuhamba ngokubonakalayo kumgca othe ngqo okanye kwizangqa ezinkulu
• ukungahambelani kwenkqubela phambili: nayiphi na enye ipateni ngaphandle kwaphambili
• immotile: ayishukumi

Kwisincoko esenzelwe u-Aeon, uRobert D. Martin uchaze indlela “njengothango lomngeni kwezomkhosi” nangaphantsi komdyarho oqhelekileyo. Kwaye kwangoko, isidoda sifuna okungaphezulu kokunyusa kancinci kwinkqubo yemveliso yabasetyhini ukuqinisekisa ukuba bayafikelela kumgca wokugqibela.

Ngapha koko, uninzi lomsebenzi we-motility wenziwa yimisipha yesibeleko. Idibanisa isidoda ukuya kwiityhubhu, ukuya eqandeni.

2. Isidoda esijiyileyo sisidoda esichumileyo

Ubudoda obungqingqwa abuthethi ukuba isidoda esijiyileyo. Ngokwesiqhelo kuthetha ukuba kukho uxinzelelo oluphezulu lwesidoda okanye inani eliphezulu lesidoda esimile ngokungaqhelekanga. Basadinga uncedo oluvela kwinkqubo yabasetyhini yokuzala ukuze bahlale bekhuselekile.

Xa isidoda singena kwilungu lobufazi, badibana nencindi yomlomo wesibeleko. Umlomo wesibeleko wenza izinto ezimbini: ukhusela kunye nokwala. Ikhusela isidoda kwi-acidity yelungu lobufazi kwaye iyala isidoda esimilo sayo kunye nokuhamba kwayo kungenza ukuba zingafiki eqandeni.

Indlela inkqubo yokuzala yabasetyhini inceda ngayo isidoda:

1. Umlomo wesibeleko - isicwili esiphakathi kwelungu lobufazi kunye nesibeleko - iindonga ziyanda.
2. Iicrypts, okanye amadlala wesibeleko, akhula ngenani kwaye andise ubungakanani ukugcina isidoda esingaphezulu.
3. Umqobo wesibeleko somlomo wesibeleko uncipha ngoko ke kulula ukuba isidoda sidlule.

3. Isidoda siphila ixesha elifutshane emva kokukhululwa

Akusoloko kunjalo! Ubomi bobomi buxhomekeke ekubeni umhlaba wesidoda uvela phi emva kokuphuma.

Isidoda esikwenza kwilungu lobufazi emva kokuphuma kunokuhlala ukuya kwiintsuku ezintlanu. Oku kungenxa yeziphumo zokhuselo lwencindi yomlomo wesibeleko kunye neekristale zomlomo wesibeleko.

Kodwa ukuba isidoda sinethuba lokoma, ziyafa. Isidoda esichongiweyo esiwela kwizinto ezibandayo, ezomileyo zisenokufa emva kwemizuzu embalwa- nangona kunqabe kakhulu kunokuhlala imizuzu engama-30. Banokufa ngokukhawuleza kwindawo yokuhlambela eshushu okanye kwibhafu eshushu ngenxa yobushushu okanye imichiza esemanzini.

4. Isidoda sifuna ukuya ngqo kwiqanda

Luhambo olude oluhle ukuya eqandeni. Ngexesha lokwabelana ngesondo, xa isidoda sishiya ipipi, azihambi ngqo kwisibeleko.

Kule khosi, esinye isidoda sinamathele kwiiseli ze-oviduct epithelial kwiityhubhu okanye zigcinwe kumagumbi amancinci abizwa ngokuba zii-crypts kude kufike ixesha lokuchumisa: i-ovulation.

Indlela eya kwisichumiso: apho isidoda kufuneka sidlule ngaphambi kokufikelela kwiqanda

• ubufazi: Inxalenye yokuqala nengaphandle, kwi-intshi ezintathu ukuya kwezintandathu
• umlomo wesibeleko: umsele omncinci ojikelezayo odibanisa ilungu lobufazi kunye nesibeleko
• isibeleko (okanye isibeleko): apho umntwana ekhula khona ngexesha lokukhulelwa
• Imibhobho: iityhubhu ezimbini ezidibanisa isibeleko kwii-ovari, zivumela isidoda ukuba siye kwiiseli zamaqanda kunye namaqanda achumileyo ukuba aye kwisibeleko
• amaqanda: amalungu amabini avelisa iiseli zamaqanda ezinokuchunyiswa ukuze zibe ziintsana

5. Isidoda sihlala sichuma kwaye sisempilweni kubomi bonke bendoda

Enye yeentsomi ezindala eziqhubekayo kukuba ngelixa kukho inani eliqingqiweyo lamaqanda (ayinyani), isidoda siyafumaneka kubomi bonke.

Hayi ngokukhawuleza.

Ukuveliswa kwesidoda, okanye i-spermatogenesis, kwenzeka ngokungapheliyo, kodwa umgangatho kunye nokuhamba kwesidoda kuyehla ngokuguga.

Amadoda amadala nawo kunokwenzeka ngakumbi ukuba agqithise uguquko kubantwana babo, malunga, ngokokufunda kwe-Icelandic.

Isifundo se-2017 sabantu abayi-1.4 yezigidi eSweden safumana ubudlelwane obuhambelanayo phakathi kobudala bendoda kunye nethuba lokuba abantwana bakhe bazalwe benoguquko kwimfuza engenamzali.

6. Amagqabantshintshi amabi kubalo lwakho lobudoda

Ngokuqinisekileyo, ii-undies eziqinileyo zinciphisa ukubala kwesidoda, ngelixa iimbethi manqindi ezikhululekileyo zigcina yonke into kubushushu obufanelekileyo bokuvelisa isidoda.

Kodwa iimpahla zangaphantsi (phantse) azichaphazeli isidoda sakho.

Uphononongo luka-2016 lufumene umahluko omncinci kubalo lwesidoda ngokusekwe kukhetho lwempahla yangaphantsi. Kodwa uphononongo lwango-2018 lwenze amaza esayensi xa kwafumanisa ukuba amadoda anxibe amanqindi aneepesenti ezili-17 ngaphezulu kwesidoda kunamadoda kwizishwankathelo.

Kodwa ababhali bokufunda be-2018 balumkisa ukuba iziphumo zabo aziziphendulanga kwezinye izinto ezichaphazela ukuveliswa kwesidoda, ezinje ngohlobo lweebhulukhwe okanye ukuba zeziphi izinto ezenziwe ngelaphu.

Kwaye ufumane oku: Umzimba unokuhlawulela ubushushu obongezelelekileyo bamatyhalarha ngokukhupha incindi engephi yokuvelisa amadlozi evuselela amadlozi.

Ke, iimbethi manqindi ziphela kancinci ulungele ngakumbi isidoda. Nxiba oko kukwenza ukhululeke.

8. Isidoda ngasinye siphilile kwaye siyasebenza

Akunjalo.

Uninzi lwesidoda aluzange lwenze eqandeni ngenxa yezizathu ezininzi. Ukuqwalaselwa njengotyebileyo, nokuba ikhulu leepesenti zesidoda kufuneka zihambe-ukuba nje iipesenti ezingama-40 zihamba, uyachuma!

Kwaye kwipesenti ezingama-40, ayizizo zonke ezenza ukuba iqanda.

Ubume bunentetho eninzi kwimpumelelo. Ukuba neentloko ezininzi, imisila emile okweqanda, okanye iinxalenye ezingekhoyo kunokwenza ukuba isidoda singakulungeli nje ukuhamba ngendlela yabasetyhini yokuzala.

Kwaye nokuba isidoda esisempilweni asisoloko siphumelela kukhuphiswano. Isidoda sinokudlula ngqo kwi-oviduct kwaye siphelele kulwelo lwangaphakathi lomfazi olujikeleze amalungu angaphakathi. Kulungile, isidoda sinokubhabha sijikeleze emzimbeni, singaze sichume.

9. I-pre-cum ayinakukukhulelwa

Ubuxoki! Kakhulu. Ukuthetha ngebhayoloji, i-pre-cum akufuneki ibe nesidoda- kodwa isidoda esishiyekileyo kwi-urethra, ityhubhu ekhutshwa kuyo umchamo kunye nencindi yobudoda.

Ngokuqinisekileyo, azikho zininzi njengakwisidoda esitsha, kodwa kubonisiwe ukuba phantse iipesenti ezingama-37 zeesampulu zangaphambi kwecum eziqokelelwe kwizifundo ezingama-27 ’eziqulethe isixa esibalulekileyo sesidoda esisempilweni.

Kwaye amadoda angama-42 afumanisa ukuba ubuncinci iipesenti ezili-17 zeesampulu zangaphambi kwe-cum zazigcwele isidoda esisebenzayo.

Ke nokuba usebenzisa indlela yokukhupha, kukho ithuba elincinci lokuba esinye isidoda sinokukhululeka kwaye sibangele ukukhulelwa.

10. Ukudlula kwamadlozi kungcono xa uzama ukukhulelwa

Ngokuchasene noko.

Ukuba nomthamo wamadlozi aphezulu, obala isidoda kwi-ejaculation enye, kulungile kodwa kukho indawo apho imbuyekezo iqala ukuncipha. Ukuphakama kokuxinana kwesidoda, kokukhona ubuninzi besidoda sinokuchumisa iqanda.

Ngokwesiqhelo, inye kuphela iseli yesidoda esine cell enye evunyelweyo ukuchumisa iseli enye yeqanda, kukhokelela ekukhuleni kombungu. Emva kokuba isidoda sokuqala siqhekeze umaleko weeproteni ezijikeleze iqanda, olu luhlu lubhloka ngakumbi isidoda ekungeneni kuso.

Kodwa ukuba ubuninzi besidoda bufikelela kwiqanda, ezimbini-okanye nangaphezulu, kwiimeko ezinqabileyo- isidoda sinokugqobhoza kulo maleko kwaye sigqibe ukuchumisa iqanda. Oku kubizwa ngokuba yi-polyspermy.

Ngokuhambisa izinto ezongezelelekileyo zemfuza kwiqanda, oku kwandisa umngcipheko kuguquko lwe-DNA, iimeko zobuchopho ezinje nge-Down syndrome, okanye iziphene ezinokubulala entliziyweni, emqolo nakukakayi.

Gcina oku engqondweni ukuba wena neqabane lakho nigqiba kwelokuba nisebenzise in vitro fertilization (IVF) ukukhulelwa. Ngenxa yokuba i-IVF igqitha kwimisebenzi emininzi yokuzala ethintela ukuba amadlozi afikelela kangakanani kwiqanda, isidoda sakho akufuneki sibe nezigidi zesidoda ukuze sichume.

11. Isidoda yindawo yamandla eprotein

Le yintsomi edumileyo ekusenokwenzeka ukuba iqhula rhoqo. Kodwa kuya kufuneka ungenise ngaphezulu kwe-100 ejaculates ukuze ubone nasiphi na isibonelelo sondlo kuso.

Ngelixa kuyinyani ukuba amadlozi enziwe njengezithako ezinjengevithamini C, zinc, iiprotein compounds, icholesterol kunye nesodiyam, ukubanga ukuba isidoda sinegalelo kwixabiso lesondlo semihla ngemihla kukuthengisa okungamanga.

Ngaphezulu, abanye abantu baneempembelelo ezichasayo kwi-semen, ngoko ke ukungenisa akusoloko kucetyiswa.

12. Iphayinaphu yenza incindi yobudoda yakho ingummangaliso

Ayizompayina nje kuphela abathi abantu kufanelekile ukuba zilungele incasa yobudoda, kodwa akukho mabali asekwe kwisayensi.

Into yokuqala oza kuyifunda apha kukuba ivumba lobudoda kunye nencasa, njengaleyo ininzi yomzimba wakho, zichaphazeleka kwimfuza ngokubanzi, ekutyeni, nakwindlela yokuphila. Njengomphefumlo womntu wonke unuka ngokwahlukileyo, ikum yomntu wonke inevumba layo elahlukileyo.

Into yesibini kukuba, ngelixa kungekho kutya okanye ulwelo olunokuthi lutshintshe ivumba lobudoda, ukulandela ukutya okunotyebileyo kwizakhamzimba ezinjengevithamini C kunye ne-B-12 kunokuba neziphumo ezilungileyo kubalo lwesidoda, morphology, kunye motility.

Kubalulekile ukugcina inzululwazi phambili kweentsomi

Ezinye zeentsomi zibuyela umva (kubuxoki) kwiingcinga zesidoda esingaqhelekanga, kodwa uninzi lwazo luyayifihla into yokuba ukukhulelwa, njengokwesini, yeyona nto ibalulekileyo kwintsebenziswano.

Ukukholelwa kwezi ntsomi kunokukhokelela kukucinga okungachanekanga okanye okunetyhefu. Umzekelo:

• ukubonakaliswa okungachanekanga kwabasetyhini njengezinto zokungena nje zesidoda kunokuba basebenzisane ngokulingana xa besabelana ngesondo
• iimvakalelo zokungoneliseki ngokuba nenani eliphantsi lobudoda
• ukugxeka elinye iqabane okanye elinye ngokuba "lingabuthathi ubunzima balo" xa lizama ukuba nosana xa ezinye izinto kufuneka ziqwalaselwe

Ukwabelana ngesondo kunye nokukhulelwa ayilokhuphiswano okanye intshinga yamandla: Ngumsebenzi weqela apho bonke abantu besini esilinganayo, nokuba uvelisa isidoda okanye amaqanda. Isitalato esineendlela ezimbini, kodwa akukho mntu kufuneka azive ngathi kufuneka ahambe yedwa.

UTim Jewell ngumbhali, umhleli, kunye nolwimi olusekwe eChino Hills, CA. Umsebenzi wakhe uvele kupapasho lweenkampani ezininzi ezikhokelayo kwezempilo nakwimithombo yeendaba, kubandakanya neHealthline kunye neWalt Disney Inkampani.