Mehlala ea 10 e behiloe ho bontša kamano pakeng tsa ts'ebetso ea nts'etsopele ea lesea le popelo ka October bokhachane. Lehe le bitsoa moimana kapa le emolisitsoe ka hare ho libeke tse 2 ka mor'a ho emola; Libeke tse 3-8 ka mor'a ho emola li bitsoa embryos; Ho tloha qetellong ea beke ea 8, e bitsoa "fetus; libeke tse 8; Embryo e ka ba bolelele ba 3cm mme e se e qalile ho nka sebopeho sa motho, ka hlooho e kholo haholo, mahlo a hlokomelehang, litsebe, nko le molomo. Popeho ea pele ea pelo le ho otla ha pelo ho ka bonoa ka tlhahlobo ea ultrasound. Ka libeke tse 12, lesea le ka ba bolelele ba 7 ~ 9cm le boima ba hoo e ka bang 20g. Exogenous orthogonia e etsahetse, ho na le ts'ebetso e fokolang maotong le maotong, 'me litsi tsa ossification li hlahile masapong a mangata. Ka libeke tse 16, lesea le ka ba bolelele ba 10 ho isa ho 17cm le boima ba 100 ho isa ho 120g. E na le letlalo le khubelu, le boreleli le le hlakileng le nang le moriri o monyenyane oa vellus. Ho tsoela pele ha masapo, tlhahlobo ea X-ray e ka bona moriti oa masapo, motho ea otlolohileng ka ntle a ka khetholla e motona le e motšehali. Tlhahlobo ea mpa e ka utloa molumo oa pelo ea fetal, bakhachane ba ka utloa ho sisinyeha ha lesea. Nakong ea libeke tse 20, lesea le na le bolelele ba 18 ~ 27cm, boima ba 280 ~ 300g, letlalo le bofubelu bo lefifi, ho pepeseha hoa fokotseha, 'mele o na le mafura a fetal, hlooho ea fetal e nka karolo ea 1/3 ea' mele, ho na le ho hōla ha moriri. , 'me mosebetsi oa ho metsa oa qala. Libeke tse 24 tsa 'mele oa fetal 28 ~ 34cm, boima ba 600 ~ 700g, mafura a subcutaneous a qala ho beha, letlalo la wrinkles. Ka libeke tse 28, lesea le ka pōpelong le bolelele ba 35 ~ 38cm le boima ba 100 ~ 1200g. 'Mele oohle o mosesaane, letlalo le khubelu, ho na le mafura a fetal monoaneng (monoana) Nala ha e fihle monoana (monoana) qetellong. Ho basali, lesela le leholo le na le labia le lenyenyane le clitoris, 'me ho banna, li-testicles li theohetse ho scrotum. Ka lebaka la ho tlase subcutaneous mafura, sefahleho wrinkles, joaloka monna-moholo. Haeba li tsoaloa, li ka lla, tsa koenya le ho tsamaisa maoto le matsoho, empa lia fokola ’me li hloka tlhokomelo e khethehileng hore li phele. Lesea la libeke tse 32 le bolelele ba 40cm, le boima ba 1500 ~ 1700g, letlalo le bofubelu bo lefifi, moriri oa sefahleho o oele, 'me o ka phela ka mor'a tlhokomelo e nepahetseng. Ka libeke tse 36, lesea le ka ba bolelele ba 45 ~ 46cm le boima ba hoo e ka bang 2500g. Mafura a subcutaneous, wrinkles ea sefahleho a nyamela, monoana (monoana) lenala le fihlile monoaneng (ntlha ea monoana). Ka mor'a tsoalo, ho lla le ho anya ho na le monyetla o motle oa ho phela. Lesea le se le hōlile ka libeke tse 40, le bolelele ba hoo e ka bang 50cm le boima ba hoo e ka bang 3000 ~ 3300g. Letlalo le pinki, mafura a subcutaneous a tsoetse pele hantle, boholo ba lesea le se le theohile, 'me moriri o bolelele ba 2 ~ 3cm. Lenala la monoana le fetile holim'a ntlha ea monoana. Motsamao o mahlahahlaha wa setho, ho lla ka lerata, ho anya reflex ho matla. Bolelele ba 'mele oa lesea le boima ba' mele li eketseha butle-butle ha khoeli ea bokhachane, e le ho nolofatsa mohopolo, mokhoa o latelang o sebelisoa ho bala: pele ho libeke tse 20 tsa boimana = lisekoere tsa palo ea likhoeli tsa bokhachane (cm), ka mor'a libeke tse 20 tsa bokhachane. bolelele ba kemaro = palo ea likhoeli tsa kemaro ×5 (cm).
Moetso ona o loketse likoleche tsa bongaka le liunivesithi, le liunivesithi tse ling tsa bongaka, 'me o bapala karolo e kholo thutong ea baoki ba pelehi le mafu a basali.
Nako ea poso: Aug-19-2024