Problemata (Problems)

...is productive. And experience is capable of producing many contrary results: —

Why is it that in cases of brain injuries, when an incision is performed to such an extent that even the meninx meninx: the protective membrane (dura mater or pia mater) surrounding the brain is wounded and blood? pours out? from vessels lying deep within, the wounds? do not heal?? Furthermore, a spasm spasmos: a convulsion or seizure caused by nervous irritation sometimes follows, so that the one suffering from this even perishes: —

Is it because the brain naturally pulsates, and so it happens that the meninx rubs against the surrounding bones from which the fragments were removed? In this rubbing n, they are torn; and when ulceration original: "ἑλκώσεως" (helkōseōs); the formation of an open sore or wound occurs, the area becomes fouled. No part of that matter collected from the ulceration can be dispersed original: "διαπνεῖσθαι" (diapneistai); literally "breathed through," referring to the body's ability to vent waste or humors through the pores because the outer parts of the body have excessively overgrown with flesh sarkophyēsai: the rapid growth of new tissue that can close a wound prematurely. At the same time, this is because the resulting scar is denser, apart from this—I mean the matter collected from the ulceration—at the sovereign parts of the brain