txheem
Cov phev ua li cas?
Kev ua haujlwm me me pib hauv cov hlab ntsha seminiferous ntawm cov noob qes, qhov twg qhov kub qis tshaj (34 ° C). Ib qho sine qua tsis yog rau lawv txoj haujlwm zoo vim tias yog cov noob qes nyob hauv lub cev nws tus kheej, Lub cev kub (37 ° C) yog siab dhau rau kev tsim cov spermatogonia, cov hlwb uas yuav tig mus rau hauv phev. Tsis tas li ntawd, qhov kawg migrate thaum lawv hloov thiab tau txais cov khoom tshiab ntawm txhua theem. Yog li, los ntawm cov hlab ntsha seminiferous ntawm cov noob qes, lawv nkag mus rau hauv lub epididymis, ib txoj hlab me me overhanging lub testis uas lawv tau txais lawv cov flagella, tso cai rau lawv txav mus. Thaum kawg, qhov kawg nres: cov hlab ntsha hauv qhov chaw uas lawv sib xyaw nrog cov kua uas yuav raug thawb thaum lub sijhawm ejaculation. Nco ntsoov: txiv neej muaj peev xwm nyob twj ywm fertile nrog ib tug testimonials, yog nws ua hauj lwm ib txwm.
Cov phev muaj ntau lab tus phev
Ce opaque thiab dej dawb yog secreted nyob rau hauv lub seminal vesicles qhov twg nws yog enriched nyob rau hauv cov as-ham (amino acids, citric acids, fructose ...) tab sis kuj nyob rau hauv lub prostate uas tsim tawm kwv yees li ib nrab ntawm cov phev. Nyob ntawd, cov kua dej no sib tov nrog cov phev tuaj txog ntawm vas deferens (lub rooj vag ntawm lub epididymis thiab lub vesicle) los tsim cov phev, uas yog, cov phev fertilizing. Nrog txhua ejaculation, tus txiv neej tso 2 mus rau 6 ml ntawm phev, muaj txog 400 lab spermatozoa.
Puas muaj lub sijhawm uas muaj txiaj ntsig ntau dua li lwm tus rau tib neeg?
Spermatogenesis pib thaum puberty thiab txuas ntxiv mus thoob plaws lub neej, txhua hnub, 24 teev hauv ib hnub. Raws li nyob rau hauv cov poj niam, tsis muaj lub voj voog. Tshwj tsis yog muaj teeb meem kho mob ua rau muaj menyuam tsis taus, ib tug txiv neej yog li ntawd yeej tsis luv ntawm phev. Txawm li cas los, tom qab 50, yam hloov me ntsis : Cov phev muaj tsawg tsawg thiab tsis zoo. Tab sis qhov no tsis muaj dab tsi ua rau poj niam fertility, uas xaus mus tas li ntawm menopause.
Spermatogenesis yog qhov tsim nyog kev tsim cov phev. Spermatogenesis ntev me ntsis dhau 70 hnub (kwv yees li ob thiab ib nrab lub hlis). Nws tshwm sim hauv ob peb theem. Thaum xub thawj, nws pib nrog germline qia hlwb, uas yog hu ua spermatogonia. Cov no sib npaug thiab tig mus rau hauv cov spermatocytes, tom qab ntawd spermatids thiab thaum kawg spermatozoa. Ib tus spermatogonia ib leeg muab ntawm 30 thiab 50 phev. Nws yog lub sijhawm kawg no uas muaj kev faib tawm ntawm tes (meiosis), thaum lub sijhawm cell poob ib nrab ntawm nws cov chromosomes. Cov phev yog li muab nrog 23 chromosomes. Thaum lawv ntsib oocyte, uas kuj muaj 23 chromosomes, lawv tsim ib lub qe nrog 46 chromosomes.
Peb puas tuaj yeem txhim kho txiv neej fertility?
Hauv cov txiv neej, tsis tas yuav tsom rau hnub zoo li poj niam. Ntawm qhov tod tes, haus luam yeeb (xws li cawv) txo qis fertility ntawm txiv neej, tshwj xeeb los ntawm kev hloov cov phev zoo. Kev txwv tsis pub haus luam yeeb tso cai rau koj kom rov ua kom muaj txiaj ntsig zoo dua thaum koj tsis haus luam yeeb txij li cov phev rov ua dua lawv tus kheej. Kev noj zaub mov ntau hauv cov roj saturated txo fertility! Yog li tsis txhob muaj cov tais diav, pastries, nplua nuj tais diav (chees, txias txiav, nqaij hauv cov kua ntses) thiab xaiv cov rog zoo (zoo li omega 3). Kev ua kom lub cev tsis tu ncua ua rau phev noj qab nyob zoo thiab tso cai rau koj mus sau cov vitamin D. Feem ntau, nws yog advisable mus soj ntsuam a noj qab haus huv lub neej nrog rau kev pw tsaug zog tsis tu ncua, txwv sij hawm nyob rau hauv pem hauv ntej ntawm cov ntxaij vab tshaus thiab tsis txhob raug rau endocrine cuam tshuam.
Daj, pob tshab phev: xim txhais li cas?
Feem ntau cov phev yog xim dawb, tab sis nws tuaj yeem ua pob tshab lossis daj me ntsis daj. Thaum cov phev daj, qhov no tej zaum yuav yog ib qho kev kis kab mob uas tuaj yeem cuam tshuam rau fertility. Nws kuj tseem tuaj yeem qhia txog oxidation ntawm spermine, ib qho protein uas nws tau tsim tshwj xeeb tshaj yog thaum kev sib deev tsis tu ncua. Nyob rau hauv cov ntaub ntawv ntawm pronounced phev xim, nws yog pom zoo kom ua ib tug bacteriological kuaj ntawm phev sau los ntawm ib tug kws kho mob.
Cov phev puas muaj zog?
Cov phev yog rhiab heev rau acidity uas neutralizes lawv. Txawm li cas los xij, tus poj niam qhov chaw mos yog ib qho acidic ntau dua los yog tsawg dua (nws ua acidic ntau dua tom qab ovulation). Tab sis thaum nws lub voj voog ntau lawm, cov phev tau txais daim ntaub thaiv: kua paum kua (uas yog cov phev) adorned nrog anti-acidity virtues. Cov kua dej no tiv thaiv cov phev. Thaum tshav kub kub kuj ua rau cov phev muaj kev cuam tshuam ntau dua los ntawm kev hnav khaub ncaws nruj, da dej ntau dhau, tsis ua haujlwm hauv tsheb lossis hauv chaw ua haujlwm overheated.
Cov phev fertilize lub oocyte li cas?
Nws muaj ntau yam cuab yeej rau nws qhov credit. Nws yog qhov tseeb tsim los ntawm ntau qhov chaw uas txhua qhov cuam tshuam rau hauv fertilization. Ua ntej, lub taub hau uas nws tus kheej muaj ob qhov sib txawv: lub acrosome, muaj cov enzyme uas tuaj yeem perforate lub plhaub ntawm lub oocyte, thiab cov nucleus, nqa lub hnab chromosomal ntawm lub cell (uas yuav muab sib xyaw rau hauv oocyte los ua qe). . Cov khoom nruab nrab nyob rau ntawm lub hauv paus ntawm lub taub hau yog ib qho tshwj xeeb ntawm cov as-ham kom tso cai rau cov phev ciaj sia thaum tos fertilization. Thaum kawg, tus flagellum tso cai rau nws txav mus kom sai li sai tau lub ovum.