θαυμαστὸν πλέγμα
From LSJ
Θέλομεν καλῶς ζῆν πάντες, ἀλλ' οὐ δυνάμεθα → Bene vivere omnes volumus, at non possumus → Gut leben wollen wir alle, doch wir können es nicht
Wikipedia EN
A rete mirabile (Latin for "wonderful net"; pl.: retia mirabilia) is a complex of arteries and veins lying very close to each other, found in some vertebrates, mainly warm-blooded ones. The rete mirabile utilizes countercurrent blood flow within the net (blood flowing in opposite directions) to act as a countercurrent exchanger. It exchanges heat, ions, or gases between vessel walls so that the two bloodstreams within the rete maintain a gradient with respect to temperature, or concentration of gases or solutes. This term was coined by Galen.
