Sechivako urume sero

Dzisingaoneki inonzi vanhurume masero (gametes). saizi yayo (dzakakudzingai muswe kureba) iduku zvikuru pane kukura zygote. Nemaziso nemamiriro urume nokuda aifanira kupfuura daro pfupi refu kusvika zai yavo. Zvinofanira kucherechedzwa kuti sero ane duku saizi zvichienzaniswa masero ose evanhu.

Sechivako urume sero

The Zvinoumba gametes rinosanganisira musoro, mutsipa, pakati chikamu (muviri) uye muswe. The mugove pamberi denderedzwa musoro unotora Yaunoti acrosome. Inoitwa makemikari naro zai goko pokutaura kunoitika. Nokuti acrosome ndiye chinoumba, iro rine makumi maviri nevatatu varume okutodza. Panosangana vari pamwe chete makumi matatu okutodza munhukadzi huri zai. Saka kuberekesa dzisingaoneki kunounza chete X kana Y chromosome, nokudaro Pakusarudza, bonde ari mwana.

Sheika gametes anoita unobva basa pakati musoro uye muviri. The mufambo kwemitsipa anobvumira musoro kuti oscillate munguva kwebasa urume.

Sero muviri ari muchimiro axial filament chine mitochondria uye microtubules.

Muswe kusvika pakati mugove (muviri) uye zvinosanganisira microtubules zvemapuranga cytoplasm.

The zvinoitika nemamiriro urume ndizvo kuti hafu vose vaivapo muna urume. Zvinofanira kucherechedzwa kuti zviparare regai kukanganisa majini yokunyorera gametes. Panyaya iyi, iyo chakaremara urongwa urume zvingavhiringidza kugona kwaro kusvika zai.

Pfungwa masero aya kunoitika crimped Coated testicular seminiferous tubule epithelium. tubules izvi achifambirana mu kururamisa tubules. Ivowo, vanoumba epididymis. Dzisingaoneki vanofanira kupfuura ose tubules. Saka, pane ayo kuibvisa zvizere. The epididymis zvinoenda mutsinga dzinofamba nemukaka iyo inotevedzera inguinal Canal uye kupinda abdominal mhango. Kana mutsinga dzinofamba nemukaka ichi mainozonodira seminal vesicles yaiva shure dundira. The seminal vesicles rinowanikwa kuunganidza spermatozoa vavo nokusanganisa pamwe chakavanzika kwemasvingo avo. The Kuronga secretions zvinosanganisira zvinokosha zvinovaka muviri kuti pave dzisingaoneki kuti zai. Maererano ejaculatory mutsinga dzinofamba nemukaka mukono pabonde masero kubva seminal vesicles inhengo kweprostate gland. Apo vari avhenganisa zvayo zvakavanzika. Makemikari uye zvinovaka muviri kuti vabereke dzisingaoneki alkaline ezvinhu. Zvinoguma kuturika, unonzi dzisingaoneki. Pamusoro panowanikwa varume ejaculation nayo muwisira urethra pamusoro vas deferens uye nechisimba riri vabudiswa mumuviri.

The zvinoitika Vhoriyamu ejaculate mukati matatu kusvika mashanu milliliters, apo chiverengero dzisingaoneki chete milliliter urume havafaniri kuva zvishoma pane mamiriyoni maviri. Mune zvinoitika mamiriro sikarudzi, mukono dzisingaoneki kuva aggregation (kumatunhu makuru kuwanda). Dzimwe nguva, nzvimbo izvi zvinogona vakatsunga nemaziso - vari kusiyaniswa yakachena kukuru uye arambe achirema.

Panguva ejaculation ari mukadzi wacho pamitsipa dumbu awana guru yakawanda dzisingaoneki. Zvisinei, chete hafu izvo anokwanisa nepamahofisi mucous chivhariso iri uterine remuromo mugero. Wehafu dzisingaoneki ichi, akavapindurawo, ndiyo chete chiduku chikamu anokwanisa kusvika pamuromo uterine sepombi. Panyaya iyi, zai iri imwe chubhu yacho dumbu. Somugumisiro, munzira kuenda zai iri kunyange zvishoma dzisingaoneki, kwete zvose kuwira fallopian chubhu. Nokudaro, oocytes zvinogona kuwanika masero makono chete anenge mazana maviri.

Rinhiko mhenyu dzisingaoneki

Mumaawa mashomanana akasara ari nyinyo anoparadza gametes acidic kusangana nekutsi kwemukadzi secretions. The cervix dzisingaoneki angararama kwemazuva matatu kusvika mashanu (dzimwe nguva yakareba), zvichienderana uwandu remuromo madzihwa.