fio ANDREAE VESALII BRVXELLENSIS 
iriteftiiiatcnderc,alijsucrofeiTipcrhuiicbifiuxrintibuSjacperpetuoa!tcrumramontm,nunc 
tamciiampliorcin,nuncanguftiorcm inuentriculum diftribucntibus.Intcrcaomnes quot- 
quot funtautoiitatum congcrictantumjno rcrum ipfarum infpcdionc,fcfe tuctur. Equidcm 
utfcmcldicain,quidhicmihiintcr fccandumcontingcrefoIcat,ucreaftirmarepofrum,quod 
in uniuerfo corpore ncqj moleftior,nccp difticilior mihicp grauior feiftio fit, quam dum infcri- 
or omentimembrana,&cauaiccorisrcgio,organaci)contcrmina nobisfuntaggrcdicda,ma' 
Jiimeucroinhomine, aut animaliquopiampracpingui. adcofaneutquemuisartificem.licct 
. induftrium,facilchichallucinaricxiftimcm.At9hocidcodico,quodccrtinihil,fcdiddunta- 
xat quodniihiuidctur afl^rcreftaiucrim . Nullamigituruclminimambilis ucficula-meatus 
portioncminuentriculuiTiporrigianimaducrti,prxtcrquaminunopontificis triremiumre- 
migc.Hic cnim,utaliisquibufdamorganis,Sfpra:cipuecircathoraciscoftas&:mufculos,ab 
aliorumhominumfabricauariabat : ita & meatum huncin duas difTeflum propagincs obti' 
nuit, quarum minor gracilioruc ucntriculi fundo, ' qua primum uena dcxtram infcrioris fnVM.crt 
ipfius Ixdis rcgioncm ambiens , uentriculo committitur , infcrebatur . Is quidcm calidi Cic- 
cicp tcmpcramcnti fuifle uidcbatur:utautcm refcifceixm numuom!iubi!iofo,quemhuiuf' 
modihominibusfrcqucntcmGa!cnuseffcteftatur,ucxariconfueuilIct,abcius familiaribus 
di!igcntifrimequa:fiui,ecquideiufmodiin)!lo obfcruafrent.Aflcrcbantit3qi,{c nunquamillii 
uomcntcm,autinmaximisetiamproccllisnau(eabundiiuidiflc:ueriimutcratrobufiiflimus, 
ab omnibus eum prsdicari affirmabant,quod iongiffiiuo fpiritu fubindc cornu inflarct,om- 
Eziilisarf!, ncsqscommilitoncs grauiuocc,&unofpirirurcccnfcndis nunicris longcfuperaret. Veriim 
•'^af fcmpcr meatus huius de quo in prarfcnti agimus,portioncniin uentriculum dcduci,hinc 
tionfempcT mihiabundeperfu,adco,quodinter diflcc j r!.!iim,hoca contcrniinis uafismcmbranisq: libcra 
pinmin. to,nuIlumforamenapparcat,cxquoaducnlriculuni propagocius mcatusdeducatur. quod 
fefeof?crrct,fimodo uelminimaqua-pianipiopagoaprEEcipuomcatudiduftajperincuriam 
pracfcindcrctur.Nam fi uclacumcatumpertundas,acbilisucficuIamdigitiscomprimas,bilis 
Vkh^km cz- mcatudefluit.qu;: citius cx propaginiseius(fi quam Naiura condidiflc) orificio promana- 
purg^irt co». rct.Adftipu!aturiridemratio.namfidi!igcntercxpendcris,cummcatumbi!eniinreftinis offe 
du-mit. rentcninoninquamcunqifiueuentriculi,fiueinteftinorumfcdcmdecentcrinfcripotuinc,red 
in qua & nieatus ipfc tuto implantandus, ucntriculoq! & inteftinis minus incomodaturus hi 
liofumiftudrecrcmenli3expurgarepoflct,nodebuifrcaduentriculum ncmcatulum quidcm 
infcri,uclc!trafcclioncmfatcbcre.Tutoeniniducuntur,quacncqueprocul, ncque a!i]s orga- 
nisinconcomitataproccdunt:quodhuicmeatui ufuucnit,quinu!!a fuccin(ffioriuia,aut in 
uentriculum,autinaliamintcftinorumpartcminfcripotuit,quam caquanunc implantatur, 
&i!itcrim tuto portxucna; caudicc&T inferiori membrana omenti deorfum modice prore- 
pensfuft"u!citur.Qu6dfiucntricu!oinfcrcndusfuifret,nonadeo commodeatqucnunconien 
ti mi;branis fuftincrctur,& obliquosanfraflus facicns ctiam longius abducerciur.Eodem mo 
do,fibi!iofamhancfuperfluitatcmoblongomcatuadfedemufque,utinintelfina piimum il- 
lic dcfluens,una cum fxdbus cxccrncrctur,Natui'a perduxiflet, periculum crat nc tcnuis mca 
tusquauis occafione ocyus rumperctur. Quod autem matcria hxc nutritioni inepta,duo- 
dcno intcftinoaptifljma,noniudcm ucntriculifundo innoxieimmittipotuerit,primumex 
bilis natura, deincx uentriculi &inteftinorum muneribus,poftremijm pituita:, qua: in u^ 
trifquencccflarioin illorumobeundisfun(fi:ioiiibusafrcruatur,examinc,&ecurationequam 
huic cxuberanti pituita; adhibemus, difccre liccbit, Nambilis flaua; naturam tcnuem flu- 
xi!cnique,&dcin incidentem dctergcntciiVque ac cxpurgantem dum abundat nimium cu» 
rationcm adhibcri,medicorumpra:cipuis conccflum eft.Deindc cibum quoufque conco- 
<5ius fit rctinendum , ocyflime uero cremorcm confedlum pcr gracilia intcftina dcduccn^ 
dum , ncnio anibigit . Ventriculo iiaque pituita: iftius incidenda: expurganda:'que gratia 
bilcm defcrcns mcatus utilis fuifTci: uerijm quia ui retentrice uentriculo utcndum maxinie 
fuit,fumnio nialo Natura nonnihil boni ncquaquam pra-tulit . Nam (lucntriculo bilisin- 
flucrct, tum i!lc(uti Galenusreclc afErmat) huius mordacitate pcrpetuo ad exccrncndum 
iritarctur : ncque tantifper duni cibus probe confcftus cfret,rctcntricc fuafacultate fiingere 
tur:& bilem illam rcfpucns,cius'que occafione naufcabundus , quod fibi oftcrretur,minus 
quam dcccl, anibircl amplcderetur^ . At quo minus iii intcftina bilis influcret, nihil om- 
Biliimivujli nino obftitil . Ha:cnaiTiquc pituitam , qua: in gracilibus illis duflibus ex in tcftinorum mune 
imfluxiismi, coaccruatur plurima,incidit,dctcrgit,atq; cxpurgat.dcindc intcftina iritas & mordcs,ad fa; 
ccs cxccrnedasinuitat,&flimulat,&ipfaquoq)unacucxcrcmctisnulla(qui5 lcgeNaturcom 
niainhoininedi!penfantur)noxam,fcd uii liquet furamiiufumprxftas, ecorporeiandcm 
propcl- 
