Thuto ea bokhachane ea Embryonic - Ho qaptjoa ho fihlela libeke tse 12
Tsoelo-pele ea bokhachane e qala nakong ea beke ea bone ea botšehali le ho hōla ha leseli la motheo la lebese. Lithaba tsa lebese, kapa "lihlopha tsa" ventral epidermal ", li bonoa ke beke ea botšelela ea" bophelo "ba" embryo ". Ba theoha ho tloha mokoting ho ea ho monate ka mahlakore ka bobeli. Sefuba se tsoela pele ka sefubeng, 'me karolo e setseng ea lehlakoreng le leng, e arohana.
Thuto ea bokhachane ea Embryonic - Libeke tse 12 ho isa ho tse 40
Pakeng tsa libeke tse 12 ho ea ho tse 16 ho nyaloa, lisele tse ikhethileng li fetola le ho feta meleng e boreleli ea lesela le li-asola. Nakong ena, lihlahisoa tsa mammary li theha 'me li theha likhoka tsa lebese ho tloha lisele tse haufi. Li-hormone tsa ho kopanela liphate li-placenta li kena mofuteng oa fetal le ho laola tsoelopele ea sefuba; sena se sala ho fihlela libeke tse 32 ho nyalana. Ebe, ho tloha libeke tse 32 ho isa ho tse 40, likhohlo tsa lebese, tse nang le colostrum , mofuta o ka hare ho sekoti.
Tsoelo-pele ea bokhachane e tsoetseng pele - libeke tse 40 ho ea ho tsoaloa
Libeke tse qetellang tsa bokhachane, mokokotlo oa mammary fetal o hōla ka makhetlo a mane ho feta boholo ba oona ba pele, 'me lesela le asola li ntse li hōla le ho feta. Ha motho a tsoaloa, likarolo tse ling tsa lipalo tsa lebese ke tsa lipalesa ka har'a monoana - lisele tsa alveoli, kapa lihlahisoa tsa lebese-ha li e-s'o thehoe mme ha ho liphetoho tse ngata tse tla etsahala hona joale ho fihlela ha ho qala ho kena bocha.
Kamora 'tsoalo, lisele tsa' mè tsa lesea le sa tsoa tsoaloa li ka 'na tsa bokella colostrum.
Liphetoho tsa Bokhachane Nakong ea Bohlankana
Estrogen, hormone e qalang ho kena bocha nakong ea bocha, e baka ho fetoha ha matsoele. Ho hōla ha lebese ho etsahala hangata ka lebaka la ho bokella mafura a mangata. Mokhoa oa litsela o boetse o tsoela pele le ho ata, 'me lihlopha tsa lisele tse nyane, tse nang le letsoele li thehoa liphethong.
Tsena ke alveoli e tlang. Boemo bo tloaelehileng ba matsoele bo hlaha pakeng tsa lilemo tse 10 ho ea ho tse 11, leha ho le joalo phapang e tloaelehileng e pakeng tsa lilemo tse 8 le 13.
Liphetoho tsa Bokhachane Nakong ea ho ea khoeli
Nakong ea ho ea khoeling ka 'ngoe, ho nonoa ha motsoako le ho hōla ka matla ha lisele tsa meriana ho etsahala nakong ea mekhabiso ea follicular le ovulatory, e phallang qetellong ea luteal e ntan'o ea. Nakong ea potoloho e 'ngoe le e' ngoe ea maqhubu, likhahla tse phahameng tsa steroids tsa mahe a bomme, haholo-holo progesterone, li khothalletsa khōlo ea mammary e eketsehileng e sa khutlele ho seo e neng e le ho eona nakong ea pejana. Kakaretso ea ts'ebetso ea mammary e teng feela nakong ea bokhachane.
Sehlopha sa Letlalo la Matso
Sefuba se entsoe ka mefuta e meraro ea lisele: tse hloekileng, tse nang le li-ligrous (le li-ligamente tse fokolang ) le mahlaku adipose (kapa mafura). Karolo e lekanyelitsoeng ea liphatsa tsa lefutso, tsa fibrous le tsa adipose li fetoha ha li se li le lilemong, ho ea khoeling, ho ima le boemo bo nang le phepo.
Anatomy ea Sekholo sa Batho ba baholo
Nakong ea matheba a matsoele a maholo, ho na le mehaho ea bohlokoa. Tsena li kenyelletsa:
- li-alveoli , kapa likhase tse nyenyane tseo lebese le bolokiloeng le ho li pata
- metsoako ea myoepithelial , e potolohileng alveoli le konteraka e le hore lebese le qobelloe ho kena ka maqeba a lebese
- masiana le methapo , e hlahisang lebese le tsoang ho alveoli
- li-sinus tse majabajababa kapa lisebelisoa tsa li-ducts tlasa marulelo a bolokang lebese
- lobes , kapa marang-rang a branching ea mehaho eohle e boletsoeng ka holimo; ngoe le e 'ngoe e na le hoo e batlang e le lilemo tse 20, e qetella e le monoana.
Likarolo Tse Ling Tsa Bohlokoa Tsa Lebese
- Litho tsa Cooper
- Mohatla o motlakase , kapa karolo ea 'mala oa mammary o fetelang ka lehare
- Tšelo ea mali , e tsoang ho methapo e meng ea mammary
- Sehlopha
- Ho boloka boitsebiso , kapa meriana ea methapo
- Lymph supply le drainage : Likepe tsa Lymphatic li tsamaisa mokelikeli ona o tsamaeang o tsoang mali le 'meleng o hloekileng. Lymph e tlosoa ho tswa ho mammary gland le lisele tse e pota-potileng ka lihlopha tse peli tsa likepe tsa lymphatic - e 'ngoe ke ea letlalo; e 'ngoe ke bakeng sa sefuba sa sebele, lesela le li-asola.
Ponahalo ea mala
Litelu li fapana ho mosali ho mosali. Likarolo tsa sefuba tse fumanoang ka leihlo le hlobotseng li tšoana; boholo ba sekoti le sebōpeho; 'mala oa li-areolar, boholo le sebōpeho, le li-Gland tsa Montgomery (likhahla tse nyenyane tse nyenyane tse nang le oli e le hore li silafatse sebaka seo le ho thusa ho thibela libaktheria hore li se ke tsa ikatisa.)