Embryonic Dairy Dairy - Zanewa zuwa makonni 12
Za'a fara ci gaba a cikin makonni na huɗu na gestation tare da ci gaba da ƙwayar madara. Lakiyoyin Milk, ko "kwakwalwa na kwakwalwa," suna gani ne a cikin makon shida na "rayuwar" jariri. Sun sauka daga rudun zuwa ga maiguwa a garesu biyu. Ƙara tana tasowa tare da kwari a kan kirji, kuma sauran raguwa, don mafi yawancin, sun rushe.
Tsuntsayin Abun-ciki na Embryonic - Dakunan 12 zuwa 40
Tsakanin makonni 12 zuwa 16, ƙwayoyin na musamman sun sake canzawa cikin tsoka mai tsabta na kan nono da isola. A wannan lokaci, mammary buds suna samar da kuma samar da duwatsar madara daga kwayoyin da suke kusa da juna. Jima'i na jima'i a cikin mahaifa ya shiga cikin karfin tayi da kuma kula da ci gaban nono; Wannan ya kasance har sai makonni 32 na gestation. Bayan haka, daga makonni 32 zuwa 40, madarar madara, wanda ya ƙunshi colostrum , ya kasance a cikin nono.
Hanyoyin Lafiya na Embyronic - makonni 40 zuwa Haihuwa
A cikin makonni na makon da suka wuce, hawan gwal gwal shine girma sau hudu fiye da girmansa na ainihi, kuma nono da isola suna girma kuma suna da duhu. A lokacin haihuwar, ƙayyadaddun ƙwayar nono ne kawai a cikin nono - alveoli, ko kuma samar da kwayar halitta-ba su rigaya sun kafa ba kuma ba sau da yawa canje-canje zasu faru a yanzu har zuwa farkon lokacin haihuwa.
Bayan haihuwar, dabbar mammaryyar jariri zai iya ɓoye colostrum.
Canje-canje na Yayayyar Lokacin Gida
Estrogen, hormone wanda ya fara yarinya a cikin 'yan mata, yana haifar da sauye-sauyen nono. Tsarin zuma yana faruwa kullum saboda yawan haɗarin jari. Tsarin ginin yana tasowa da kuma shimfidawa, da kuma kungiyoyin kananan kankanin, kwayoyi masu yawa sun kasance a ƙarshen tasirin.
Wadannan su ne alveoli gaba. Matsayin ci gaba na ƙirjin yana faruwa a tsakanin shekaru 10 zuwa 11, duk da haka yanayin da yake tsakanin shekarun 8 zuwa 13.
Canje-canje na Maganganu a Lokacin Tsarin Halin Menstrual
A kowane lokaci, yanayin girma da kuma ci gaba mai girma na kwayoyin halitta yana faruwa a lokacin lokuttuka da kuma ƙwayoyin ƙwayoyin cuta, wanda ya fi girma a cikin ƙarshen lokaci na luteal sa'an nan kuma wanes. A lokacin kowace juyowar kwayoyin halitta, matakan da ake amfani da su a cikin kwayar cutar ovarian, mafi yawancin kwayar cutar, sun inganta cigaban mammary wanda baya komawa ga abin da ya kasance a cikin zagaye na baya. Ƙididdigar ci gaban aikin mammary shine kawai a cikin ciki.
Abun ciki na jiki
Uwa yana da nau'in nau'in nau'in nama: glandular, fibrous (ciki har da halayen haɗari ) da kuma adipose (ko fatty) nama. Halin dangin glandular, fibrous, da kuma adipose nama yana canza tare da tsufa, juyayi, ciki, da kuma halin da ake ciki.
Adult Dairy Anatomy
A cikin tsofaffin ƙwayar nono, matakan da suke da muhimmanci. Wadannan sun haɗa da:
- alveoli , ko ƙananan jaka wanda aka adana madara da kuma ɓoye
- myoepithelial Kwayoyin , wanda ke kewaye da alveoli da kwangila don haka ana tilasta madara a cikin rassan madara
- ducts da ductules , wanda ya share madara daga alveoli
- lausiferous sinuses , ko kari na ducts a karkashin isola cewa ajiye madara
- lobes , ko kuma hanyar sadarwa na dukan ɗakunan da aka ambata a sama; Kowane nono yana da kimanin 20, yana ƙarewa a cikin nono.
Wasu Sassan Muhimmanci na Yara
- Haɗin haɗin Cooper
- Axillary wutsiya , ko kuma wani ɓangare na glandar mammary wanda ya kara zuwa cikin tsaka
- Jinin jini , wanda ya zo ne daga wasu suturar mammary
- Musculature
- Bayanin ajiya , ko kuma nasu samarwa
- Harkokin lantarki da ruwan hawaye: Jirgin sama na Lymphatic suna kai wannan ruwa mai motsi wanda ya samo daga jini da jiki. An cire Lymph daga glandar mammary da kyallen takalma a kusa da shi ta hanyoyi guda biyu na tasoshin lymphatic - daya shine fata; ɗayan yana da ainihin nono, da nono da kuma isola.
Yanayin Tuntun
Breasts bambanta daga mace zuwa mace. Sassan ƙirjin da aka gani ta hankalin ido ba su da alama; size da kuma siffar nono; launuka mai launi, girman da siffar, da kuma Montgomery Glands (ƙananan ƙananan ƙwayoyin cuta a kan isola wanda ke ɓoye jiki mai laushi don yad da yankin kuma ya taimaka wajen kare kwayoyin daga kiwo.)