Furthermore, consistent with our neurofilament staining, at later embryonic (E13.5 and E14.5) and early postnatal (P0) stages, the zygomatic, temporal, superior buccolabial, inferior buccolabial and marginal mandibular nerve branches of the facial (VII) nerve were observed in controls (Figure 3 e, g, i) and appeared truncated or absent in Nestin - Cre; Shox2 flox/ − mutant animals (Figure 3 f, h, j; arrows).
Source: wiktionary