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# Title: Renati Des-Cartes Tractatus De Formatione Foetus (shelfmarks Leibn. Marg. 178, Stück 3; Leibn. Marg. 178)
# Folio 44, page id 1759054828:0056
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Aoe
RL. D E S-C A R Y F 5
ex corOarus accipiunt exteriores constituune, dum rami
renarum iplas concomitantium, vertus cor reportant
languinis particulas quae ad ejus nutritionem minus aptae
rCPCPIUNEUE.
Diversa hie adhue consideranda Occurrunt, guorum
primum est modus quo componuntur sibrae quaedam
crassissimae, in forma chordarum, quaeque ejusdem lune
substantia cujus reliqua caro eAt. VE hic intellisatur co-
ritandum es concaritates ejus in initio Aguras valde
irreculares habuisse, nam quia particulae Canguinis quas
continebant inaequales crant, se dilatando divertas rias
acceperunt; quo medio direrta Foramina in seminis
partibus quas premebant effecerunt, quae omnia forami.
na paulatim adaucta, tandem unicam tantum concari-
tacem eftecerunt; ex leminis partibus illas separantibus.
paulatim e loco suo, per exigua tilamenta cordis carnem
componentia, expullis, iptae etiam fibras illas sub forma
Columnarum compoluerunt.
Fadem ratio causa fuit productionis ratrularum X,
sit causa lire exiguarum cunicarum, quae introitus vena carx de
valvula-
rum, quae
arteriae renosae occludunt. Cum enim lanouis per duos
in introitu illos introitus in cordelcendit, et coredi conatus fuit,
Venae cava
 arteria
D ero)a
dantur.
iE IL
proptor dilatationem, alius languis qui illum per coldem
InErOICuS sequItur, impedit quo minus per illos iterum
corediatur; qua de caula partes illa undiquaque circum
Cemen quodcor componit recedunt, et ibi varia parra
Foramina efficiunt; poltea parra tilamenta parenchrma-
eiscordis partes seminis quae circa illa Foramina dantur
propellentia, ex carum locum occuxantia, ibi tali modo
dilponuntur, ut ralrulas illas, et fibras quibus adheerent.
componant. Contiderando enim accionem lanouinis in
cor per medium horum introicuum descendentis, ec ejus
qui pereorum circuitus coredi conatur, ridemus juxta
Mcchanicorum regulas, cordis Abras, quae inter duas
halee
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