Navarandakadzi gonads

Sex mumasero womunhu muviri kuita zvinoverengeka zvinokosha mashandiro: Pakusarudza vasiri zvechadenga pasi uye vane basa kubereka. Vari dzinoratidzwa rakasangana mhando secretion, sezvo ivo zvibereko uye nemasero embeu, uye yakananga mahormone. Navarandakadzi gonads vamwe chaiwo zvinhu. Zvisinei, murau mabasa anoitwa mumasero gonadotropic pituitary mahormone.

Male pabonde shwanu. Male pabonde mumasero vanomirirwa testes, izvo zvibereko dzisingaoneki (nemasero embeu), uye androgens (varume mahormone chaiwo).

spermatogenesis pezvakaitwa kuitika munyika dzinonzi Leydig masero. Paumbwe dzisingaoneki rinenge akaramba - kutanga kuyaruka uye kupedza makore 50 - 60 makore (ndiyo nomumwe Data), apo testes atrophy, uye avo vasiri basa decays nezvishoma. Vakakura utachiona masero epididymis.

Male dzisingaoneki rine musoro, mutsipa, muswe uye flagellum, nako rinogona kufamba. Masero ane anonzi musoro acrosome, iyo ine makemikari kuti kuparadza goko ari zai. In hadzi nyinyo dzisingaoneki kungava tichishingaira kusvika 6 mazuva.

Kana bonde mahormone, chinonyanya kukosha ndechokuti testosterone zvigadzirwa iri nokudzorwa luteinizing kemikari pituitary. kemikari Izvi dzinonetsa kukura gono muviri, sezvo riri basa:

• uye nokuwedzera basa kukura nhengo dzokubereka nadzo panguva yokuyaruka;
• Kugadzirwa muviri bvudzi varume mhando;
• kushandura inzwi richinjwe nenzwi;
• kukura simba uye tsandanyama kukura;
• pfupa inotungamirwa;
• Chimiro kukwezvana vanhu wechirume;

Sezvaunogona kuona, zvepabonde mumasero vari vanhurume kuita zvikuru kukosha mabasa. Somuenzaniso, kana vana zvaipesana spermatogenesis kwacho munhu anogona kubereka mwana. Uye nokusava dzepabonde mahormone nezvechinhu inonzi urwere - munhu vaichengeta deposition mafuta ari mazamu, hudyu uye magaro, nhengo dzomuviri kukura disproportionately, sikarudzi vari underdeveloped, kushaya chido chokurara, kutanga mupfungwa abnormalities.

Female bonde mumasero. The gonads evakadzi vanomirirwa ovaries iyo vakura zai uye synthesized munhukadzi hormone: inonzi estrogen uye progesterone. Mumwe munhukadzi ovary ine balls maviri: stroma uye cortex.

Ovarian follicles panguva dzakasiyana zvokukura kuibvisa dziri mune cortex. Uye kana nedanho inotungamirwa munhurume dzisingaoneki riri hwose, vakadzi bonde masero ose akaitwa kare munguva embryo kukura. Mumwedzi dzinokura zai rimwe chete kuti atanga follicle uye kunoita pasi fallopian chubhu. Panzvimbo follicle siyana ari corpus luteum mbeu, iyo zvino anochinja kuva chena, papera yakabudiswa panzvimbo ovum anoramba diki vanga.

Yokubereka kenza vakadzi, uye zvibereko chaizvo hormone progesterone uye inonzi estrogen. Estrogens vane nhamba mitambo:

• ndivo mhosva kuwedzera kwokunze uye nechomukati sikarudzi pakuyaruka;
• pilosis akaumba mukadzi mhando;
• mhanyisa kukura mammary mumasero;
• tunodzivisa mapfupa kukura pakureba;
• inotokonya dzinotsanagura kwetunhu kwemafuta, izvo rakachengetedzwa pamusoro mubhokisi, dumbu, dzakatendereka uye magaro - kunyanya munhukadzi muviri;

Progesterone aburitswa corpus luteum mbeu. chikuru basa Its - ndiko kuti kugadzirira endometrium ari dumbu kusvikira kutanga zai. kemikari iri kunokanganisa mammary omumuviri, zvichiita kuti kuzvimba.

Kana gonads vakadzi hadzishandi zvakanaka, hwakazara mwana, kunonoka kurara kukura, mupfungwa kunotevera.