PE3I0ME 



743 



KoTopbiii HaMHHaeT yK;ia;ibiBaTbCH najioiKOoSpasHO na 6a3ajibnoM nojiiocc KjieroK iisBiiTbix 

 KaHa.'ibueB. 



B 3T0H ciaAnn MeraHecJjpoc emc ne npeacTaBjiaeT paa^iejieHHoro Mopc{)OJiorniec- 

 Koro crpoeHHH. 



rioBeAeHne snHxejiHeB no OTHOtiieHiiK) k TpunaHOBoro ciiHero, peaKUHa mejioqHoii 

 (j)occj)aTa3bi, co6cTBeHHaH (J).^yopec^e•^^liH h KapxHHa xoHApiioMa nosBOJiHioT yTBep>KAaTb, 

 qro noMCMHbic (j)yHKmin Me30HecJ)poca pacryi Ko;iHHecTBeHHo, Aocxiiraa n.riaTO Me>Kiiy 8 n 9-m 

 AHCM iiHKyQauiiH. B 3to BpeM3 MexaHecJDpoc HaMewaeTCH Mop(j)ojiorniecKii b BH;ie KaHajibues, 

 riiCTOJTorHHecKoe CTpoeHne Koropbix uexKO KOHTpacTHpyex co crpocHueM MeaoHecjipoca : 

 ysKiiH npocBeT h Majibie SaaotjjiijTbHbie kjictkh, b to BpeMH KaK b Me30Hec|)poce Kjiy6oHKn 

 6o.ribiunx pasMepoB, npocseT KaHajibueB ujnpoK h KjiexKii aun;io(ţ)ii.TbHbi. 



B STofl CTaflHH yciijieHHOH /teaxejibHocTH MeaoHecfipoca, MeTaHC(})poc cocyiuecTByex 

 MopcjjoJioniiecKH, ne npoHBJiHH eme KaKyio-jiH6o hs cbohx cneun(J)iiHecKiix cjjyHKUHH : 

 OTcyxcTBHe CKonjieHiiH rpiinaHa, oTcyrcTBHe c(j)epojiHTOB MoneBoft KiicjioTbi, c})oc(})aTa3bi, 

 r.miKoreHa, co6cTBeHHOH (})jiyopecueHUHn. 



FoMeocjjyHKmioHa.TbHaH napa Me30- n MeTaHec{)poca xapaKTepH3yeTCH cymecTBoea- 

 nHCM o;iHoro napinepa, naxo^HmerocH b pa3rape cnemî(})HHecKofl AeflTejibHocTH, b to 

 BpeMH KaK BTopoH napTHep HaxoflHTcn b CTa^HH Mop(j)OJiornqecKOH flH(j)(}3epeHU[iaunn 6e3 

 npoîiBjieHUH cnemi(|)HMecKiiX c})yHKU,HH. 3to hc 03HaHaeT nojiHoro OTcyTCTBna jieaiejib- 

 HOCTH BTopHWHOH noMKH B ;iaHHbiH MOMCHTi JXstJibHeuiuHe HccjieAOBaHiiîi 6y;iyT nocBHiueHbi 

 ycTanoBjieHiiK) xima (jjyHKmiii, iicno.iHHeMOH 3thm opranoM b stom nepiio/ie. Owa MOKer 

 KaqecTseHHo orjiimaibCH ot cneun(})nMecKHX noweiHbix c[)yHKmii"i. 



riepBoe nojTOKHTe.ibHoe 4)yHKmii)HajibHoe npoHBjieHne, KOTopoe noHBJiHercH b Mexa- 

 Hecjjpoce, 3T0 peaKUiiH meJioiHoii cj)occ})aTa3bi h HajiHWHe rJinKoreHa b KjreTKax H3BHTbix 

 KaHajibueB na 11-h acHb HHKySamm jio noHBjieHiiH apyrnx cneuncJjHwecKHx cjjyHKUnoHajib- 

 Hbix npoHBjieHHH. C.aeAOBaTejibHo, HajiHwne mejioMHoft cj)oc(J3aTa3bi — HBjieHne, npe/iLue- 

 CTByK)mee noHBJieHHio cnemicjjniiecKHX cJ^yHKUHH oprana. CneuHcj?nHecKiie cJ3yHKmiii none- 

 jiHH3Tca B cjieziyromeM nopH/iKe : CKonjieHiie TpiinaHOBoft chh», MHHiiMa.abHoe Ha 13-h aeHb, 



CraHCBHTCH HBHbIM Ha 14-H ACHb HHKyQaUHH, KpHCXaJIJIbl MOHeBOH KIICJIOTbl nOHBJlHlOTCH 



Ha 13-H neuh, cjia6aH (j)jiyopecueHUHH oTMe^aercfl Ha 13-h flCHb h CTanoBHTCH hbhoh na 

 14-H ;ieHb. BHyxpHBeHHoe Bse^enHe HHAHroKapMHHa Ha 14-h nenb HHKy6auHn no3BO.THeT 

 npoii3BecTii HexKyio o/tHOBpeMeHHyio oueHKy chocoShocth KOHueHTpHpoBaHna ii Bbi4e;ieHHH 

 Me30- H MeraHecJjpoTHiecKOH napbi. 3Ta cnoco6HOCTb hbho Bbipa^ena y nepBHHHoii ho^kh 

 H jTHUJb HaMewena y btophhhoh oohkh. 



B TeweHHe aroro nepHoaa OTHomeHHe MejK^y nepBHHHoft h btophihoh noiKaMH 

 n3MeHHeTCH no cpaBnentiro c nepBbiM onHcanHbiM nepHO^OM. 06a napxHepa o6jiajxaiOT 

 renepb opusnanaMn cneuHc{)HHecKofl c{)yHKUHH. 3th oxjiHqHH npoHBjiHioTCH pas.miHHbiMH 

 KapiHHaMH sepeH TpnnaHOBoro CHHero h BbueJieHHH MOMeBOH kiicjiotu. B Me30He(J)poce 

 Ha6jiioaaK)TCH 6ojibUJHe sepna, a b MeraHecjjpoce sepna iwa.ibix pa3MepoB n na.iroMKO- 

 o6pa3Hbie. B nepBHiHoft nciKe c(j)epojiHTbi âoJibUjHX pasMepoB h pa3MemeHbi BepeHHueft 

 Ha npoTH>KeHHH BbiBOflHbix Tpy6oK, a Bo BTopoH no^Ke OHH MCHbuiHX pasMepoB, 6ojiee 



n.TOTHbie H B MeHbUieM KOJlHMeCTBe. 



Pa3BiiTne cnenHcjjnqecKoii cj)yHKU,HH e MexaHecJjpoce cosna^aex c na^ajioM ogpax- 

 Horo pa3BHXHH nepBHHHOi'i no»iKH, Koxopoe BbipawaexcH nHBa3neH iviaKpocjjaroB, cKonjie- 

 HHeM B npocBexe xpyfiKH oxxoprnyxoro anHxeJiHH. 



BHfl Me30- H MexaHecJjpoxHqecKOH napbi yKasbiBaex Hanajio nepexoAHoro nepHoja 

 B MeTadojiHHecKOH cxpyKxype 3M6pHOHajibHoro KOMnjieKca, Koxopbift npoHB.unexcH Mop(|)o- 

 (})yHKmioHa.xbHO b o6ohx cocymecxByiOLUHX noneHHbix opranax. HecMOxpa na xo hto nep- 

 BHMHaîi noMKa npo^ojiJKaex npoHBjiHXb cboh cneuncJjHHecKue 4)yHKunH, npouecc nepepom- 

 jxemiH cxaHOBHxcH Bce 6ojiee h 6ojiee Bbipa>KeHHbiM, b to BpeMH Kax BXopHHHan noHKa 

 npoHBjiHex Bce Sojiee pe3KHe (})yHKUHOHa:ibHbie npn3HaKH. 



KpoMe H3yiieHHH roMeo4)yHKunoHa.FibHoro KOMH.rreKca nepBHMHo-BTopHiHoii homkh, 

 npiiBeAeHbi naâjiro/ieHHH Ha;i apyrofl roMeoc})yHKunoHajibHOH napoii, cocxoHmefi, c ojiuon 



CXOpOHbl, H3 3M6pH0HajIbH0H neHCHH, B, C JipyrOU CXOpOHbl, H3 >KeJlX0HH0H 06OJIOHKH, 



>KejixowHOH SHXOAepMbi H no;iJie>Kau;ero «ejixKa, paccMaxpHBaeMoro KaK «nepexo;iHaH 



ncMCHb». 



