A tsarin da nono, ta ci gaba

Don gane da tsarin da kuma asalin da nono haltta taimako. Mammary gland shine yake - modified apocrine sunadarin gumi raya daga ectoderm. A cikin mutane, ci gaban da mammary gland ya auku a cikin shida mako na intrauterine rayuwa. A cikin ƙirjinka fata ne na bakin ciki da kuma m, shi ya ƙunshi gashi follicles, gumi kuma sebaceous gland. A mammary gland shine yake yana da wani jam'i na jijiya zaruruwa daga kafada da kuma mahaifa plexus da intercostal jijiyoyi. gland shine yake jiki yana da wani convex discoid siffar, launi kullum kodadde ruwan hoda, m texture, da matsakaita diamita na da tushe ne 10-13 cm Dairy 'yan mata da wani talakawan nauyi na 150-200 g kuma lactation -. 400-900, da Y mafi m matasa, mata suna da dimbin yawa gland shine yake yammancin duniya da kuma shi ne uprugimi.Stroenie nono size, siffar da kuma matsayin da mutum halaye da kuma siffofin.

A tsarin da nono da kuma ta haltta

Mata ƙirãza an yi sama da yawa Kwayoyin cewa samar da madara, wanda aka tattara a cikin lobules. Daga kowane mutum yanka tafi Milky rafi, da kuma duk segments ake hada cikin segments ciwon m bututu a cikin abin da ake hada duk m kananan ducts.

Gwargwado radially shirya dangi da kan nono da kuma rabu da juna adipose nama. Kowane rabo gland shine yake an dimbin yawa kamar mazugi tare koli a kan nono, inda ya bude da excretory bututu. Ducts da nono widen, kafa Milky sinuses. Kafa yankin da nono da aka kira da areola, da kuma kananan tudun a kan shi - yana da sunadarin gumi. A tsarin da nono a mata ya bambanta daga namiji gland shine yake tsarin.

A ci gaba da mammary gland ne da za'ayi godiya ga prolactin (a hormone na agara pituitary) da kwai ji ba gani. Saboda prolactin lactation faruwa. A farkon rabin ciki nono ƙaruwa a size, kamar yadda yakan faru a rabi na biyu na ci gaban da epithelial secretory aiki partite Kwayoyin wanda ya kunshi Alveoli. A karshen ciki da kuma na 'yan kwanaki bayan haihuwa qara mugunya da kuma samar da yellowish, m m ruwa kira colostrum. Sa'an nan a canji a abun da ke ciki na secretions, shi ya zama mafi ruwa daidaito da kuma asirce madara. By karshen ciyar lokaci, madara samarwa rage-rage, kuma tsaya a nan ba har sai da na gaba ciki.

Dairy ci gaba a 'yan mata na faruwa a lokacin balaga, dake da shekaru 10-15 shekaru. A tsari yana farawa tare da ci gaban da nono da kuma areola peripapillary sa'an nan ya fara nono girma a general. Nono a mata ne na girma na dogon lokaci da kuma a karshe kulla nono size kawai bayan ciyar da jariri. A penultimate mataki na ci gaban da nono kai shekara 15-17 shekaru.

Mammary gland shine yake - labile sashin jiki, kazalika da mahaifa aka shafi cyclical gyare-gyare. Kafin farko na sananniya auku yaduwa na gland, tsokoki kumbura, da baƙin ƙarfe zama edematous da kuma friable. Bayan karshen haila, wadannan cututtuka bace. A daidai da shekaru lokaci nono ne zuwa kashi 4 iri.

1. Iron yarinya ko mace 20-25 shekaru. A mammary gland shine yake yana da wani uniform tsarin, madara ducts imperceptible premammarnogo sarari nisa na 5 mm.
2. Cancer a mata dake da shekaru 25 da 40 ne aikin aiki. Ta Milky wurare an yi liyi tare da epithelium, kullum girma a kan garun akwai rassan tare da m secretory vesicles. A tsarin da gland dabam saboda cyclical canje-canje.
3. Mammary gland shine yake menopause. A premenopausal glandular nama ne dissipated a cikin nau'i na kananan tsibiran a cikin glandular alwatika, wanda aka rabu da adipose nama filayen. Tare da shekaru, yawan glandular parenhim rage-rage, ƙirjinka yanã meshed. Fibrous nama atrophies.
4. Mammary gland shine yake postmenopausal mata. A menopausal canje-canje a cikin ƙirjinka zama babu ja glandular nama vuya gaba daya, displaces m nama.

Kamar yadda aka ambata a sama, da tsarin da nono dogara a kan shekaru, matakin na ci gaba da al'aura gabobin, daga lokaci na hailar sake zagayowar na mata, hormonal matsayi, duration na ciki da kuma lactation. Age ne babban factor cewa kayyade tsarin irin gland. Amma, duk da haka, akwai wani mutum bambancin a rage da kuma ci gaban glandular abubuwa, wanda aka ƙaddara da alimentary, endocrine da kuma wasu dalilai.