104 THE MUSCLES. 



Lying deeper than the muscles thus far described, but 

 closely connected with a number of them, are the following: 



M. frontoscutularis. 



Origin (Fig. 63, o) on the frontal bone, along the supra- 

 orbital margin, from the craniomedial angle of the eye caudad 

 to the zygomatic process of the frontal. 



The fibres form a large muscle which passes dorsocaudad 

 'to the scutiform cartilage and is mostly attached along its 

 ventrolateral border. Some of the outer fibres, however, pass 

 distad of the scutiform cartilage toward the cartilage of the ear, 

 thus joining the adductor auris superior (/). 



The outer surface of this muscle is closely connected with 

 fibres of the intermedius scutulorum (a), the corrugatores 

 supercilii medialis (b) and lateralis (d), and the frontoauricu- 

 laris, when this exists. The outer surface is covered near the 

 origin by the orbicularis oculi (V), farther dorsad by the muscles 

 just mentioned and the integument. The inner surface is in 

 relation with the frontal bone and the adductor auris inferior 

 (Fig. 64, o). 



Action. Pulls the ear craniad. 



M. adductor auris inferior. (Fig. 64, o.) (Part of the 

 auricularis anterior of man.) A small muscle lying beneath 

 the frontoscutularis. 



Origin on the ligament which connects the zygomatic 

 process of the frontal with the frontal process of the malar. 

 The fibres form a thin band about 7 millimeters wide which 

 passes craniad, closely united to the inner surface of the fronto- 

 scutularis. At the caudal edge of the zygomaticus (d] the 

 muscle is interrupted by a short tendinous interval ; the fibres 

 then continue to their insertion on the tip of the antitragus. 



Relations. Outer surface with the frontoscutularis, the 

 zygomaticus (d}, and the integument. Inner surface with the 

 temporal muscle and M. antitragicus (). 



Action. Pulls the ear craniodorsad. 



The remainder of the muscles of the ear, which, with the 

 exception of the tragicus lateralis, merely interconnect the 

 cartilages of the external ear or parts of these cartilages, are 



