Mene ne bambanci ovogenesis na spermatogenesis?

A cikin wannan takarda mun ba da shawara ga ware Ba kamar ovogenesis na spermatogenesis, magana game da kansu wadannan matakai. Hakika, za mu ba su bar ba tare da hankali da kuma jam sel, bayanin sifa da aiki.

Sake bugun - wannan shi ne babban manufar dukan abubuwa masu rai a wannan duniya tamu, cewa yana taimaka wa ci gaba da iyali line, wato, duniya tamu ba zai zama fanko. A akasin wannan, a yanzu da adadin masu rai, musamman mutane, girma a geometrical ci gaban. Ovum da maniyyi - yana da jima'i Kwayoyin maza da mata bi da bi. Sũ ne waɗanda suka za a keɓe wa mu labarin. Karkashin Gametogenesis gane aiwatar da samuwar gametes. Idan ya zo ga maniyyi, shi ne ake kira spermatogenesis, idan a kan kwai Kwayoyin, da oogenesis. Duk da wannan a cikin mafi daki-daki, za ka koyi on.

gametogenesis

Oogenesis da spermatogenesis, bambanci tsakanin wanda bai da wuyar gaske, haka da yawa daga cikin siffofin da ake irin wannan, za a iya kira a Generic lokaci - "jam line". game da shi a bit more yanzu.

Don fara, bincika da ra'ayi, za mu iya rarrabe kalmomi biyu: "gamete" da "Farawa", na karshe daga cikin Girkanci harshe za a iya fassara ta a matsayin - "asalin". Wannan shi ne a zahiri da Kalmar "jam line" na nufin "asalin gametes." Gametes - wani sel haihuwar a maza - maniyyi, mata - da kwai. Gametogenesis kanta kuma za a iya raba ta jinsi: gametogenesis faruwa a cikin jikin mutum, aka kira spermatogenesis, kuma a mace ta jiki - oogenesis. Amma a nan za mu zo na farko bambancin da wadannan matakai. Oogenesis fara kafin haihuwa haife yan mata da kuma spermatogenesis gani a boys suka isa wani shekaru, yawanci 12-13 shekaru.

mafarki ba 'yan mata

Kan aiwatar da kwai samuwar, watau, oogenesis auku a cikin mahaifar, yayin da mafarki, ko kuma wajen da mataki na farko, lissafin kudi don game da shekara tara. Mun bayar da kadan ya fi shawara da mataki na balaga, 'yan mata:

• 1st mataki - ƙara girma, akwai lokuta a lõkacin da wata yarinya ne samun fiye da 10 santimita a tsawo, an dauke da kullum. Matsayin mai mulkin, a yau da 'yan mata outperform boys.
• 2nd mataki - da canji na sakandare jima'i halaye. Game da shekaru 12 da haihuwa yarinya ta fara fita daga siffar wani mummuna duckling. Yana fara girma ƙirãza, rage kugu, girma gashi a pubic yankin da kuma armpits. Aƙalla a wannan lokaci farkawa kiyaye kwai da kuma fara karfafa su ci gaba. Ba da da ewa, da yarinya san cewa a watan jiya.
• Uku mataki - karshe mataki. Ya zo game da shekaru 18. Yanzu ta ke dauke da za a kafa cikakken, shi iya haifa lafiya zuriya.

balagarsa Boy

Kamar yadda muka ambata a baya, da 'yan mata kafa kwai a cikin mahaifar, da boys duk faruwa kadan daban. Maniyyi Kwayoyin fara su ci gaba kawai a lokacin da ya kai gare shi 12-14 shekaru. Kafin wannan mataki na balaga, shi ne ma mai canji:

• kara a size na azzakari.
• karuwa daga cikin Kwalatai (Scrotum);
• girma pubic gashi, armpits, kafafu da kuma fuska.

Bayan kai 12-14 shekaru yaro zai iya riga fara zama jima'i aiki, amma wajibi ne a yi gargaɗi ga mahaifansa biyu, saboda ya iya riga sa maras so farkon daukar ciki na abõkinsa. Mu a yanzu gaba kai tsaye ga namiji da mace, jam sel, mu yi la'akari da su tsari, samuwar matakai, da kamance da kuma bambance-bambance.

kwai

Bari mu fara da mace jima'i Kwayoyin, faye hali na oogenesis ne mu dauke da wani kadan daga baya. Don fara, mun ba da shawara a yi la'akari da tsarin da kuma aiki da kwai.

A kwai ne in mun gwada manyan da tsayayyen cell, ta girma isa 170 microns, wanda shi ne mafi yawa namiji jam sel (har zuwa 70 microns). Kowane daga cikinsu yana dauke da zama dole na gina jiki, inda za mu gani:

• abubuwa bukata domin biosynthesis na gina jiki.
• tsara abubuwa.
• gwaiduwa.

Sel na iya raba ta da yawan kwai yolks:

• a kan aletsitalnye.
• politsitalnye.
• mezotsitalnye.
• oligoletsitalnye.

Daga mai negligible adadin zuwa manya-manyan, bi da bi. Idan muka yi la'akari da mace kwai, shi za a iya dangana ga aletsitalnomu da izoletsitalnomu irin. Wannan ne, da akwai kadan daga cikin gwaiduwa, wanda za a iya bayyana ta da cewa da mutum tayi ne hanzari tuba zuwa gematotrofnomu irin abinci. Izoletsitalny irin na nufin cewa kwai gwaiduwa an ko'ina rarraba da kuma tsakiya a cibiyar.

A kwai harsashi yana da wadannan:

• cytoplasm.
• M daina kai hare hare.
• annuri kambi.

All bawo da m aiki, kada a ba su shiga cikin kwai na fiye da daya maniyyi da ake bukata domin hadi. Duk da wasu suna katange.

Yanzu zabi kwai aiki:

• tabbatar da tayi makamashi.
• samar da wani mataki na farko tayi a kan gina jiki.

maniyyi

Kowa ya sani cewa da maniyyi - wani ɗa namiji cell, amma yadda yake aiki? Mun bayar da kadan bincika wannan tambaya. Bayyanar gametes za ka iya ganin hotuna a cikin wannan sashe. A da tsarin ne da wadannan sassa:

• shugaban.
• wuyansa.
• tsakiyar part;
• wutsiya.

The shugaban maniyyi tsakiya da aka cika, shi ne ta ke daukawa hereditary bayanai. A lokacin hadi, kwai wuce shi. Sex na yaro ya dogara daidai a cikin maniyyin ba. Idan ya daukawa X chromosome, shi zai zama wata yarinya, idan Y, sa'an nan da wani yãro.

The wuyansa aka nuna a matsayin karamin takaita a gaban tsakiyar ɓangare na maniyyi, wannan shi ne bangaren da alhakin aiki motsi, in ba haka ba ba zai yiwu ba ga hadi.

Next zo cikin jiki, wanda kuma samar da iko ga motsi gametes. A wutsiya da aka wakilta wani flagellum, wanda shi ne mai matukar muhimmanci aiki - don matsar.

Kafin mu yi la'akari da siffofin spermatogenesis da oogenesis, mun ba da shawara ga ware na asali aiki na maniyyi - wani rahoto na kayyade abu zuwa ga kwai.

ovogenesis

Bari mu fara da samuwar cikin mata haihuwa Kwayoyin, zaɓi lokaci ovogenesis da kuma bayanin kowannensu. Saboda haka, saki lokaci:

• kiwo.
• girma.
• maturation.

Yanzu za mu iya riga a kira na farko bambanci ovogenesis na spermatogenesis a farkon yanayin da ake zargin na da mace sel haihuwar (oocytes), da kuma na biyu - namiji (maniyyi). Bari mu fahince kowane mataki na oogenesis.

A mataki na haifuwa samuwa a cikin parenchyma na asali sel (kumshe) raba ta mitosis. Saboda haka, a cikin ovarian bawo Layer accumulates oogonia. Su tara:

• sunadaran.
• fats.
• glucose.

Yanzu suna sosai daban-daban daga waɗanda suke a gabãninsu, da sakamakon oogonia germinal yawa ya fi girma, amma su a kayyade kayan shafa ne m. Yana da muhimmanci a lura cewa wannan tsari faruwa kafin a haifi wata yarinya, abin da yake a cikin mahaifa.

A na gaba mataki faruwa jim kadan kafin yarinya cikin duniya. Wannan mataki da aka kira girma. Yanzu akwai wani rabo na mitosis, don haka kafa oocytes na farko domin. Idan aka kwatanta da oogonia suka zama karami, amma m m karuwa a size. Yanzu oocytes jiran glitch, suka samu kansu a granulosa harsashi bauta da kuma dakatar da ci gaban mataki na farkon follicle. Jumillar adadin irin wannan Kwayoyin, akwai game da miliyan biyu, amma kara ci gaba da za su yi kawai wasu daga cikinsu (game da 450).

Uku mataki (maturation) ya auku jim kadan kafin watan farko yarinya. Daya daga dormant follicles tana farkawa da kuma ci gaba da raya kasa, wanda tsaya game 12-13 shekaru da suka wuce.

spermatogenesis

Mun riga jajirce daya bambanci ovogenesis a kan spermatogenesis (cin gaban daban-daban jam sel) na karatu kuma za a iya raba da cewa oogenesis fara kafin a haifi wata yarinya, amma aiwatar da spermatogenesis - a lokacin da ka isa 12-14 shekaru. Mun riga gano biyu bambance-bambance, sa'an nan muka nuna a fakaice shi sake zuwa ƙarfafa ilmi.

spermatogenesis mataki ma dan kadan bambanta daga matakai na oogenesis (wurin wani mataki). Bambanta da wadannan matakai na spermatogenesis:

• haifuwa.
• girma.
• maturation;
• samuwar.

Anan mun ga da kama da wadannan matakai, da farko uku matakai ne guda, kawai a mataki na maturation ovogenesis iyakar, da kuma maniyyi samar ci gaba, da suka fara mataki na samuwar.

bambance-bambance

Kana kusan gama karanta wannan labarin, kokarin da shi ga kanka - kiran da bambance-bambance na spermatogenesis da oogenesis. Yanzu duba yadda ka jimre da aiki.

A farko bambanci ovogenesis na spermatogenesis - shi ne wani lokaci dabam fara aiwatar. Girls gametogenesis tsari zai fara a lokacin fetal ci gaba a boys - 12-14 shekaru.

Bambanci na biyu - a kan aiwatar da bunkasa oocyte oogenesis da spermatogenesis - maniyyi.

The uku bambanci - da rayuwa Hasashen na jam sel. Maniyyi rayuwar mutum ɗari to ɗari da goma da kwanaki (idan mun yi la'akari da dukan tsari na spermatogenesis, game da 74 days), mace jima'i cell - shi ne sakamakon dogon jira a kwai (12 zuwa 40 years).

A karo na hudu bambanci - da lambar. A kan wani rayuwa, maza haife fitar da yawa daruruwan biliyoyin maniyyi, da kuma gaba daya duk da matakai na oogenesis ne game da 450 qwai.

kamance

Mun kasance a cikin shakka daga rubuta wannan labarin da ya haskaka kamance da kuma bambance-bambance tsakanin spermatogenesis da oogenesis. Yanzu sake mu generalize, mun nuna a fakaice a matsayin jerin da kamance na wadannan matakai.

• Uku na kowa mataki (haifuwa, girma, ripening).
• Oocytes da spermatocytes kafa ta mitosis.
• Mataki girma a oogenesis da spermatogenesis halin da karuwa a gametes.
• maturation mataki na faruwa da meiosis.