34 



ANATOMY OF THE WOOD RAT 



M. sternothyroideus (figs. 7, 8) is a slender muscle 

 lying laterad of the trachea and deep to the sternohyoid. 

 Its origin is upon the sternum beneath the sternohyoid and 

 it is inserted upon the thyroid cartilage. 



genloViyoidj 

 styloglo5 \ 



©■moh^oid. \ 



ptcryg. iTittru. / \ 



^ealoglos. 

 ■Hyoglos. 

 /tVi'^roVLN/old,. 

 /lonq.cap. (cut J 

 / (rect.caxi. la.t. 

 / ioccipLtosta.ip. 



a: 



occvp. sca:p 



lOTl^.C^p. 



long, colli. 



obliq.cap.svxp. 

 scaJVeuus 



aAliTito sc3.p.lcuLy 



Fig. 8. Throat and interramal musculature of Teonoma: more super- 

 ficial muscles at left, deeper on right, (a representing wire hooks.) 



The innervation of the omohyoid, sternohyoid and sterno- 

 thyroid is by the ansa hypoglossi. 



M. thyrohyoideus (figs. 7, 8) is a small, short muscle 



