42 H. LISSER 



Fig. 7 Sagittal section of human Embryo no. 144 (14 mm.) to show, especially, 

 M. interarytaenoideus. 



Fig. 8 Sagittal section of human Embryo no. 144 (14 mm.) to show hyoid bone 

 and thyreoid cartilage, M. cricothyreoideus, and tongue region, thy. hy., M. 

 thyreohyoidcu.s; umo. hy., M. omohyoideus; mylo. hy., M. mylohyoideus; sterno. 

 thy., M. sternothyreoideus; sterno. hy., M. sternohyoideus" dig., M. digastricus; 

 gen. gl., M. genioglossus; X, N. vagus. 



Fig. 9 Sagittal section of human Embryo no. 144 (14 mm.) to show M. Cricoary- 

 taenoideus lateralis, thyreoarytaenoideus, cricoarytaenoideus posterior, and 

 nerve recurrens. ary. c, arytaenoid cartilage; esoph. m., esophageal musculature; 

 gen. hy., M. geniohyoideus. 



Fig. 10 Graphic reconstruction of cricoid and arytaenoid cartilages in human 

 Embryo no. 43 (16 mm.). 



Fig. 11 Graphic reconstructions of pharyngeal constrictors in human Embryo 

 no. 43 (16 mm.), m. constr., middle constrictor muscle; inf. constr., inferior con- 

 strictor muscle. 



Fig. 12 Graphic reconstruction of laryngeal musculature in human Embryo 

 no. 43 (16 mm.). (Thyreoid cartilage partly removed). 



Fig. 13 Graphic reconstruction of thyreoid cartilage hyoid bone, and styloid 

 process in human Embryo no. 43 (16 ram.). 



Fig. 14 Graphic reconstructions of larynx cartilages in human Embryo no. 43 



(IG mm.). .s»/). c, superior cornu (thyreoid cart.) ; inf. c, inferior cornu (thyreoid 

 cart.). 



