Menene cikakken samfurin fatar jikin mu?
Samfurin Tsarin Jiji da Jijiya
Mahimmin goyon baya don fahimtar bambanci tsakanin artery da vein histology. A cikin wannan samfurin guda ɗaya an wakilta jijiya ɗaya da jijiyoyi biyu dalla-dalla. Jijiya ɗaya tana da tsayin yanki don nuna rufaffiyar bawul ɗin venous; jijiya da jijiyar dama suna giciye don haka za'a iya gane nau'i-nau'i daban-daban, irin su tunica media, elastic membrane da tunica adventitia. Girman rayuwa 20X.
Girman: 25*10*55cm, nauyi: 2.7kgs
MC-YA/HB111 Gastroenterological Endoscope Model
Samfuran sassa 3 don nuna tsarin ciki na Gastroenterological Endoscope.
MC-YA/HB131 Samfurin Harshen Mutum
Kimanin girman rayuwa 20x. Ana nuna sifofin tarihi na harshe, gami da ɗanɗano buds, ƙwararrun harshe da mucosa, da kyakkyawan tsarin musculature. Wani nau'in nau'in nau'in nau'in rayuwa na daidaitaccen harshe - wanda ke nuna tonsils na palatine da harshe da kuma epiglottis - an haɗa. An ɗora akan tushe mai ɗorewa na polymer.
Girman: 33*23*11cm, nauyi: 2.8kgs
MC-YA/HB133 Mitosis Model
The mitosis contains 8 models to show its whole dividing course. Samfurin 1st yana nuna ƙirar tsakiya ta al'ada. Nau'i na 2 da na 3 sun nuna cewa babu chromosomes masu kama da juna da ke canzawa wanda ke nufin mitosis. Daga samfurin 4th, ya fara nuna hanyar mitosis. Centromere baya kan farantin metaphase wanda shine farkon lokacin mitosis, sannan ana jera centromere akai-akai akan farantin metaphase wanda shine tsakiyar lokacin mitosis. Samfurin na 7 ya nuna sabbin ƙwayoyin guda biyu har yanzu ba a ƙirƙira su ba wanda shine farkon lokacin mitosis kuma samfurin ƙarshe ya nuna sabbin ƙwayoyin guda biyu sun ƙare wanda shine ƙarshen lokacin mitosis. Wannan shi ne duk ci gaban mitosis.
MC-YA/HB134 Meiosis Model
Tsarin meiosis ya ƙunshi samfura 9. Siffofin na 1 da na 2 sun nuna akwai chromosomes masu kama da juna suna canzawa, wanda shine kashi na 1 na meiosis. Samfurin na 3 yana nuna haɗin chromosomes amma ba zai iya gaya wa 'yar'uwar chromatid ba, wanda shine lokacin haɗin gwiwa na meiosis. A cikin samfuri na 4, ana iya ganin chromatids 4 a cikin chromosomes ɗin da aka haɗa, wanda shine lokacin rabo huɗu na meiosis. A cikin tsari na 5, centromeres suna kusa da bangarorin biyu na farantin metaphase wanda ke nufin tetrad yana kan farantin metaphase, wanda shine tsakiyar lokacin meiosis I. A cikin tsari na 6, centromeres suna matsawa zuwa sanduna biyu daga farantin metaphase, wanda shine farkon lokaci na meiosis I. A cikin na 7th model, centromeres wanda ba a kan farantin karfe, wanda ba a kan farantin pre-metaphase. tsakiyar lokacin meiosis II. A cikin tsari na 8th, ba a samar da sabon tsakiya guda biyu ba tukuna, wanda shine farkon lokacin meiosis. A cikin tsari na 9, an kafa tsakiya guda biyu wanda shine ƙarshen lokacin meiosis.
don tuntuɓar mu yanzu !!!
