aortnc conditioncm cxpofiicro , quid imprimis verifimile milii 

 dc hac rc videatiir. Sic iiitcrna tcnuis crgo aortac mcmbrana, 

 fic tnnica craira, quae propriam eius fiibdantiam efficit, ab al- 

 tera vulncris extremitarc ad altcram vsquc, fic tandcm extcrna 

 huius partis aortac mcmbrani quoque, a peritonaco continuata, 

 fed haec quidem non ad fummam extrcmiratcm vsquc, diflcdae 

 quafi inuentac funt. Hacc cnim pollcrior luprcmam, vcl quar- 

 tam quafi, vulncris partcni, cxtcnfa quidcm, at intcgra tamcn, 

 tcnuis ct pcllucida tcgcbat; vt fiipcriorcin cxtrcniitatcm vul- 

 ncris propriac crafTiie tunicac transparentcm pcr illam confpi- 

 ccre liccrct. Nimirum ab internis omnino vis fislucns, quac- 

 cunquc hacc fucrir, ad parictcm artcriac applicata fuit. Pro- 

 pria craffa tunica , firmior quidcm , at ccdcre ncfcia , vi aufta 

 rupinc , cxrcrna, tcnuior molliorquc, fi:d tcnax, cxtcnfa potius 

 in hac fcde, ccdcndo vim cuitaHc vidctur. 



Ab lioc, qucm hacficnus dixi, infimo maximoquc tumorc 

 mcdius confiric^tione aortac diltindus clt. Conlbifftio imprimis 

 in antcriori fuperficic infigncm fc pracbct, vbi vtrinquc iarga ct 

 fatis profunda imprcllio apparct, (Tab. I. a. b.) qua ct fuptrius 

 mcdium ct infcrius infimum tubcr prominct. In poltcriori fu- 

 pcrficic plica notabilis hac ipfa conltrictionc cfiicitur, qua fu- 

 pcrior pars aortac, proxima tubcri infimo, angultior ct dcpics- 

 fior , tubcrquc infcrius ipfum angultiori aortac parti quafi in- 

 cumbit. Ambitus aortac in hac lijdc angultiori poUicum qua- 

 tuor ct trium lincarum cft. Sic circumquaquc hacc tubcra , 

 fibi mutuo propinqua, tamcn ct a fc mutuo dirtinguuntur. 



Mcdium tubcr partcm omncm aorrac al) cius cgrcffu 

 ex ptricardio ad cam (cdtm vsquc occiipat , qiia ramos ma- 

 iorcs illa, innominatain artcriam carofidcinquc finiltram ct fub- 

 chuiam finiltram cdit^ vt tamcn cx iplo hoc tubcrc iam illac 



aric- 



