Fig. 10 Human embryo, 20 mm. in length, 462—14—2—3X165. Section 

 through mandibular nerve and ramus to otic ganglion. To be compared with 

 figure 27. MAN, mandibular nerve; MNR, mandibular ramus to otic ganglion. 



Fig. 11 Human embryo, 14mm. in length, 940 — 14 — 2— 3X 160. Section through 

 tongue. IX, lingual ramus of glossopharyngeal nerve; LM, margin of tongue; 

 SMG, submaxillary ganglion; SLG, ganglionic masses associated with glosso- 

 pharyngeal nerve. 



Fig. 12 Diagrammatic reconstruction of the larger cranial sympathetic gan- 

 glia and the nerves to which they are genetically related in an embryo about 20 

 mm. in length. CG, ciliary ganglion; CT, chorda tympani; GG, geniculate gan- 

 glion; GSP, greater superficial petrosal nerve; LN, lingual nerve; LSP, lesser 

 superficial petrosal nerve ;M, maxillary nerve; Mx4A^, mandibular nerve; OG, otic 

 ganglion; OP, ophthalmic nerve; PG, petrosal ganglion; SG, semilunar ganglion; 

 SMG, submaxillary ganglion; SPG, sphenopalatine ganglion. 



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