τὰ λαμπρὰ καὶ νεανικά ‘their splendid and spirited pleas.’
οὐ γὰρ κ.τ.λ. ‘What! sha'n't we. &c.,’ quidni igitur?
ὧν παρέξεται constr. τί δὲ καὶ δεινόν ἐστιν ἐκ τούτων ἂ παρέξεται ὁ Ἀρίστων κατὰ σοῦ; ‘is there any serious harm, anything really worth fearing?’
ἧφθαι passive referring to Ariston, like τυπτόμενον just before. ‘ἧμμαι is pf. mid. in Soph. Tr. 1009 (ἧπται) and Pl. Phaedr. 260 (ἦφθαι)’ (we may add Dem. Or. 51 § 5 ἧφθαι τῆς τριήρους τούτους); ‘pf. passive in Eur. Hel. 107, Ar. Pl. 301 and Thuc. IV 100.’ Veitch, Greek Verbs.
ἐρράφθαι § 41 τὸ χεῖλος διακοπεὶς οὕτως ὥστε ῥαφῆναι. This was doubtless part of the surgeon's evidence in § 10.
κατεαγέναι second perfect in passive sense. For other constructions, cf. Plato Gorg. 469 D, τῆς κεφαλῆς κατεαγέναι and Lys. Or. 3 § 40 καταγεὶς τὴν κεφαλὴν ὑπ᾽ αὐτοῦ.