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# Title: Renati Des-Cartes Tractatus De Homine, Et De Formatione Foetus (shelfmarks Leibn. Marg. 178, Stück 4; Leibn. Marg. 178)
# Folio 224, page id 1759053384:0306
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224
R EN ATF DES-C AR PES
sviritus cursum hoc pacto continuando perrenire, cum
esse in quo dobet esse umbilions, de quo luo loco. Scd Or-
do poltulat, ut descripto spirituum cursu explicem etiam
quomodo arteria ex renae ramos uos in omnes spermatis
Partes simul producant.
XLVIII. Ouanto magis crescit in corde copia lanouinis, tanto
aterix e Majori cum impetu dilatatur; unde Ac ut progrediatur
lonsius; prooredi autem nequit nisiin locos illosubi par-
una per tes spermatis nonnullae dispolitae lunt ad ipsi cedendum
pus porri- Oco, proindeque ad Auendum versuscor pervenam cum
arteria, ex qua languis ilte atuit, conjunetam, quia nul-
la alia reltat ria quam insistant. Hloc reronorosramuseu
los duoa alterum in vena, alterum in arteria ilta format,
quorum extremitates conjunctae lunt, e iltarum sperma
tis particularum locum simul occupatum cunt: aut vero
inde stut rami jam Formati ulque co. porrigantur, extre-
mitatibus utique luis junetis manentibus. Porro quia exi-
suae Omnes permatis partes aptae sunt ad Auendum hoc
pacto vertus cor; sin lecus, versus ejus superticiem Facile
protruduntur; intra hanc superticiem nullae unt, in (pa.
tio in quo spiritus diffunduntur, quae luis ricibus ad cOr
non deterantur. Et haec demum ratio est cur vena ex 2Y-
Terixe in eo ramos uos in omnes partes aeque lonse Porri-
Dant.
Nequerero in dubium rocari debet haec reritas, quan-
ciores ar. Guam in animalium corporibus pauciores aiteriae quam
terix apr venae ut plurimum appareant: ratio enim postulat ut hae
quam re multo magis appareant, quam illae, cum soleat languisin
renis exiguis non minus quam in maximis, etiam polta-
nimalium mortem lublistere, venarum omnium membra-
nis aequaliter Fere Pese coaretantibus: Contra quam arte.
riarum Canguis in illarum ramusculis fere nunquam sub-
CiCcit; nam co pulsus per diastolen, in renas cito mIgrat,
2
Duomodo
vVena Fa-
mOSTuOS
EOTI COK. 
BatE.
X L IX.
Cur pau-
TeaNE,