74 



a. bophcjikt.. 



Ha (ôokoboîi) airrajibHOH CTopoH'fe (3 e) kocth ho im?KiieMy Kpato jiejKiin, b-l Bna'ÉijjrBKofy 

 pacniiipaiomeiicfl K3aAH noJiocKH cycTaBHaa noBepxnocTb nui Mc n ; neiiocpeACTBeuiio K r i> ncii 

 npiiMbiKaeT'b HHJKHîifl cycTaBHaa noBepxHocTb aih os trapezoideum, coeAumuoinancii BiiepeAH 

 iiiapoKHM r b nepeinenKOiM'b cb Bepxuefi no.nyjynHoii cycTaBHOii nOBepxHOCTbio a .m toh >Ke kocth. 

 3arti\rb. Aa.ifee Ha3aAT> na ary cTopony cnycKàiûTCfl 3aAHie KOim,r>i cycTaBiii.ixb noBepxHocrew 

 AJia os scaplioideum n a.ih os lunatum. 



Ha upOTHBOIIOJIOJKHOH, 3KTaJbIIOH ÔOKOBOH CTOpOIffc HMBlOTCfl JlHUIb (3(1) IieupaBHJIbHOH 



<i>opMbi cycTaBHbifl n.nomaABH nin os unciforme, iipHMbiKaiomia — ■ Bepxuaa ici> cycraBuon 

 noBepxHOCTH A-ifl os lunatum, a HHJKuaa — kt> cycraBHon noBepxHOCTH a-ih Mc m . 



3aAHflfl CTopona kocth Hecerb ABa pacxoABinnxca BBepxi> h bhh3i> OTpocTica, H3b koto- 

 pbixi> rojiOBKy BepxHflro o6pa3ye r rb 3aAHaa qacTb cycTaBHon noBepxHOCTH a-ïh os lunatum , 

 a hhîkhîh, 3HaMHTe.ibH0 MeH'fee pa3BHT0ïi, o6jroMaHT>. 



Cxodcmea u pa3ÂimiH. — no o6m,eMy habitus'y 3Ta KOCTb 6jiH3Ka kl cooTB'trcTBeHHoii 

 kocth Hocopora, no tojibko nrnpe h 6ojte njocKaa; 3arBivrb, 3aAHin iiHJKHiii orpocTOKb 

 en 3HaqnTejibH0 mente pa3BHTT>. Hto KacaeTCH cycraBHbixb iiOBepxHOCTeii, to ont npe/KAe 

 Bcero oomaioTCfl CBoeio ôojite njiocKOio *opinoio; bt> qacTHOCTH, cycTaBHaa noBepxnocTb 

 AJia os lunatum y HHApnKOTepi/i npoTarnBae'rca BHJiOTb ao nepeAHen cropoiibi kocth, 

 OTT'fecHflfl cycTaBHyio noBepxHocTb ajih unciforme na ea 6oKOByio (ulnar'Hyio) noBepxnocTb, 

 TorAa KaKi> y Hocopora OHa orpaHiiqHBaeTca 3aAHHMT> BepxHHMT) orpocTKOMb, cxoah KiiepeAH 

 Ha H'ET'b, h os lunatum cnepeAu couieHaeTca TOJibKO ci. os unciforme. CooTBf>TCTBenHO, hjio- 

 m,aAKa &m os scaphoideum uiupe h HMkerb Himia o^epTaHia. y Hocopora cycraBHaa noBepx- 

 HOCTb AJia Mc in ooj'Be y3Kaa h c r BA-ioo6pa3Haa. ^jia os unciforme — raKate 3HaqHTejibH0 6ojrfce 

 BbiTaHyTa wb AJiHHy, npoTarHBaacb orb nepeAHaro Kpaa ao BepuiHHbi Bepxuaro 3aAHaro OTpocTKa. 

 TaKJKe oojibinyK) njomaAB (othocht6ji bHo) 3aHHMaerb njiomaAKa ajih os trapezoideum, n mupe 

 n.ïomaAKa ajih Mc n . Bi> oôuifiwb, OAHaKO, KaKL cKa3ano, thhx kocth coxpaHaerca. 



KocTb Hyracodon ôoiie BbicoKaa; nepeAHaa cTopona npaBHJibiio leTbipeyro^bHow 

 *opMbi. HeBbicoKaa rojoBKa cMimeHa bi CTopony paAiyca 1 ), noAT> os lunatum. HnjKaië OTpo- 

 CTOK-b (3aAHifi) oqenb chjibho pa3BHTb, ôojibine, nkwh y HOcoporoB7>. ^Jia Mcj[ OTHOCHTejbHO 

 MajeHbKaa njoiuaAKa, bt> oTJinqie orb nocoporoB'b, y KOTopbix'b OHa ôojibmaa. HnjKHaa 

 (ajih Mc ni ) cycTaBHaa noBepxnocTb BorHyïaa (y HHApHKOTepia Bojniooôparmaa). 



0T.iHMin, KOTopuH npcucTaBJiHeTTj kocti» iiHji.piiKOTepia cpaBHHTejibHO ci. koctbio Hocopora, myTL 

 <(B , b HanpaBJieHin kocth jioiiiaAH», KOTopan, o^HaKO, aB.inexcn necpaBHeHHO ôojibe (inpaBiuLHO» nocrpoeBHOîi — 

 aieH'fce kocoîî, et eme iweHte pa^BHTUMi. ssAHiiMt KpaeMt. CycTaBHHa noBepxHOCTH eme oo-rfee njiocKia h KopoTKia — 

 kocti. jKopo'ieHa Bt nepe^ae-3aa,HeMT. HanpaBJieHin. BepxHfla cxopoHa HeceTT> cyci'aBHWH noBepxHOCTH a.ïh os 

 scaphoideum h lunatum nOMTH et, oahoS iijiockocth, h no nepeAHefl crbHKb os lunatum 3aHHMaei"b OTHOCiiTejibHo 

 cojbmee npocTpaHCTBO. Hhmji onepTaHifi n 6oKOBbixi> noBepxHOCTefi. 



Palaeosyops. — KocTb HecpaBHCHHO neHte BtiTflHyTa bt> m:ipnHy n mmbctb naTiiyro.ibHoe O'iepTaHie (y hh- 



1) HaAO HMfeTb Bi. BHii,y, hto y aouia,ii,n iniBeTca to ;Ke CMBmenie ro.iOBint B b CTopoHy radius'a (eu;e 6o.ibinee, 

 MliM'b y n HApii KOTepiJl). 



