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. 2012 Jun 26;5(6):812–822. doi: 10.1242/dmm.009910

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© 2012. Published by The Company of Biologists Ltd

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial Share Alike License (http://creativecommons.org/licenses/by-nc-sa/3.0), which permits unrestricted non-commercial use, distribution and reproduction in any medium provided that the original work is properly cited and all further distributions of the work or adaptation are subject to the same Creative Commons License terms.

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Fig. 2. — Hmx1 expression in developing mouse craniofacial mesenchyme. (A–H) Serial sections of a wild-type E11.5 mouse embryo showing the expression domains of Hmx1 in the CM. Successively more ventral planes of section show distribution of Hmx1-expressing cells in the CM. Arrows in F and G indicate the region of expression in ventral BA1. (I) Planes of section in A–H. Shaded areas indicate regions of Hmx1 expression: 1, part of proximal BA1 overlying the trigeminal ganglion; 2, the caudal half of distal BA2 and a small region of the caudal/distal tip of the mandibular component of BA1; 3, an extensive region of posterior mesenchyme, caudal to the head vein and branchial arches, ending at the top of the limb bud. BA1, branchial arch 1; BA2, branchial arch 2; BA3, branchial arch 3; C1, brachial (pharyngeal) cleft (groove) 1; C2, brachial cleft 2; Cor, heart; Di, diencephalon; DRG, dorsal root ganglion; EAM, external auditory meatus; FL, forelimb; Hb, hindbrain; GG, geniculate ganglion; Inf X, inferior ganglion of the IX–X ganglion complex (nodose/petrosal ganglion); Mn, mandibular process (of BA1); Mx, maxillary process (of BA1); mnTG, mandibular lobe, trigeminal ganglion; mxTG, maxillary lobe, trigeminal ganglion; OV, otic vesicle; P, pons; RP, Rathke’s pouch; SAG, statoacoustic ganglion; SC, spinal cord; SG, superior ganglion; V, head vein. Scale bar: 200 μm.