— 42 — 



ocHOBHŁia qepTEi ea pasBHTia coBepincHHo corjiacHe et o6pa30Ba- 

 HicM-B raHrjiio3HOH iiojiockh y cejiaxii. 



TaKHMŁ o6pa30Mi> npe;i.CTaBJieHHaa mhok) KapTHHa BnojiH-fe 

 cxo;iea et ;i,aHHŁiMH ro<&*MaHa jł,jiji peiiTHJiii (35), nogeMy mh 

 H MoajCMt eiiHTaTB o6pa30BaHie nepH^epH^ecKoi HepBHofi enc- 

 TeviH o;i;Hopo;i.BHMt ^Ji^ Be'fext Sauropsida. KaKHMt źkc oópa- 

 soMt, OAHaKo, iipHMHpHTfc ero et o6ii],eH exeMOH, ;i,aHHOH HaMH 

 panbuie, H yji.oBJieTBopHTe:ifcHOH ;i,;ifl Ichthyopsidaf 



OStacHcme, MH-fe KaaKCTca, KpocTca Bt o5mMXt oco6eHHO- 

 eTaxt pa3BHTia rpyimBi Sauropsida, BEi3eBaeMEixt oÓHJiicMt H^ejiT- 

 Ka Bt Hxt aHiiiaxt. 



OrHocHTeJiBHO o6pa30BaHia HepBHoM encTeMŁi sjttcb Biiojin-fe 

 npujioHiHMO BtrmeripHBe;teHeoe Hann cooópaateHie, ^to o^aHt 

 BMÓpionajiBHtiH npoueect, no oómcMy iiopH;i.Ky pa3BHTia 6oJi'fee 

 panniii, Moatert 6bitb He OKOH^ent, KaKt pa;i,0Mt h OAuoBpeMCH- 

 HO et HHMt Ha^HHaeiea jtpyrofi, BtipaHtaiomiH y^KC nocji'fe;i,yio- 

 m,ee pa3BHTie. 



H3t pa3BHTia eejiaxm acHO, ^to oopasoBaHie DiCHTpajiBHOH 

 HepBHoii encTeMH npe;i,ineeTByeTt o6pa30BaHiK) nepn^epH^ecKoii. 

 IIoejitjiHaa ;i.u<D4>epeHiiiHpyeTca H3t loro M-feeTa nepBOii, r^tt npo- 

 H30UIJI0 cpocTaHie KpaeBt M03roBOH TpyÓKH, TaKt qTo Bt Coji-fee 

 paHHia CTa;i,m Kpaa mosfoboh naaeTHHKH, hc iipeji.cTaBJi}ia oco6oh 

 Mop<i>ojiorHqecKoS An**epeHiiiHpoBKH , ya^e onpe^iitjiaiOTt M-feeio 

 6yAymHxt sa^arKOBt ucpn^epEmeeKOM aepBHOH eacTeMBE. 9to 

 npeACTaBJieme pa3t HaBeer;ia yeraHaBJiHBaeTt rcHeTH^ecKyio 3a- 

 BneHMOCTB ea OTt ii.eHTpajiBeoH. Ho oeHOBHBia qepTw pasBWTia 

 MoryTt BH^toHSM-fenaTBca Bt 0T;ii'fejiBHHXt rpynnaxt BiopocTC- 

 neHHUMH no;i.po6HOCTaMH. 



O^eBHAHO, qTo y Sauropsida AH**epeHB,iipoBKa nepH«i>epH- 

 qecKoS HepBHOH CHeieMBi Bt rojiOB-fe HaqMHaeTca upeat;i.e aojina- 

 ro oóocoGjiema i^eHTpajiBHoif; 9to h cctb BTopHqHoe aBJieme, ne 

 Hapymaiomee ooiii,aro njiaaa, TaKt KaKt Bt TyjiOBHm-fe coxpaHH- 

 jiHCB iiepBoeaqajiBHbia OTEomema. Bt A^jiBHfeiiineMt pasBHTia 



MCaiAy BKTO^epMOMt H BCCM HepBHOH CHeTeMOfi (HeHTpaJIBHOH H 3a- 



qaTKOMt nepH*epHqeeKOH) epa3y ycTaHaBJiHBaeTea Ta ptsKaa rpa- 

 HHi^a, KOTopaa BcaKyio HOByio CBa3B Meatay hhmh sacTaBJiaeTt 



