διὰ δὲ τὴν τού αἵματος ἑνότητα καὶ ἡ τῶν φλεβῶν ἀπὸ μιᾶς. δύο δʼ εἰσὶ διὰ τὸ τὰ σύύματα εἶναι διμερῆ τῶν ἐναίμων καὶ πορευτικῶν· ἐν πἀσι γὰρ τούτοις διύὸρισται τὸ ἔμπροσθεν καὶ τὸ ὄπισθεν καὶ τὸ δεξιὸν καὶ τὸ ἀριστερὸν καὶ τὸ ἄνω καὶ τὸ κάτω.
De partibus animalium. Aristotle. ed. Bernhard Langkavel. United States. 2016.
Funding provided by Harvard Library Arcadia Fund.