jr. RHOMBOIDEUS. 219 



Crista lamhdoidalis — The lambdoid ridge of the skull (Fig. 56). — The crest itself does 

 not distinctly appear, but its position coincides with the lines of attachment of the occipito- 

 scapularis and sterno-mastoideus and part of the dam-trapezius. 



Mesoscapula and metacramion (Fig. 44 and § 608). 



Trochiter — The larger or cephalic tuberosity of the humerus (Fig. 30 and 74, § 420). 



Zygoma — The zygomatic arch (Fig. 30, 56, §§ 207, 229). — The outlines of this promi- 

 nent bony arch are shown just dorsad of the name. 



Muscles. — The acromio-deltoideus (§ 670), dermo-humeralis (§ 629), spino-deltoideus 

 (§ 674), teres (§ 680), and triceps (gg 682, 684), are sufficiently described in the explanation 

 of Fig. 66 (§ 608), and the supraspinatus, infraspinatus and teres (the word major is super- 

 fluous) in the explanation of Fig. 74 (§ 672). The masseter, temporalis, splenius and 

 digastricus are not particularly described in this work. 



Acromio-trapezius (Fig. 66, § 613). — This was transected so as to leave the semicordate 

 tendon wholly in the vertebral part, which is reflected dorsad. The scapular part is 

 slightly lifted so as to show the manner of its connection with the ectal surface of the 

 spino-trapezius. 



Clavo-trapezius (Fig. 66, § 615). — The clavicular end has been reflected. The other and 

 much wider end was longitudinally divided from the angle between the cephalic and mesal 

 parts of the origin, and the two portions thus formed were reflected respectively cephalad 

 and dorsad. Tlie name is written upon the latter only. 



Latissimus (Fig. 66, § 635). — By the removal of the vertebral end of the spino-trapezius, 

 the dorso-cephalic angle of this muscle is exposed. In the interval between its cephalic 

 border and the caudal border of the rhomhoideus, are seen some of the proper vertebral 

 muscles. By inadvertence, the fibers in the dorso-cephalic corner are not represented as 

 parallel with the border. 



Levator anguli scapulce (Fig. 73, § 686). — A part of the ectal aspect is seen between the 

 splenius and the supraspinatus. The ental aspect of the whole muscle appears in Fig. 73. 



Levator claviculce (§ 627). — This has been transected near its insertion upon the meta- 

 cromiou, and the metacromial end is somewhat indistinctly seen reflected upon the spino- 

 deltoideus. 



Occipito-scapularis (§ 617). —The cephalic attachment is seen to have been covered by 

 that of the clavo-trapezius, and its scapular end is wedged in between the rhomhoideus and 

 the levator angidi scapnlm. 



Rhomhoideus (§ 620). — The cephalic border is not satisfactorily represented in this 

 figure. The scapular end of the muscle is better shown in Fig. 74. 



Spino-trapezius (Fig. 66, § 611). — The vertebral end has been removed altogether. 

 The scapular end is lifted a little so as to show its relations with the acromio-trapezius anA 

 with the ectal aspects of the supraspinatus, infraspinatus and spino-deltoideus. 



8terno-mastoideus (Fig. 73, § 622). — The removal of the clavo-trapezius, the salivary glands 

 and the external ear has exposed its cranial attachment and its intersection with the clavo- 

 mnstoideus. Its sternal end and its connection with its platetrope are shown in Fig. 72. 



Other Parts. — Mt. an. ex. — Meatus auditorius externus. — Its lumen is exposed by the 

 removal of the concha or external ear with the skin. 



M. RHOMBOIDEUS. 



§ 620. Synonymy. — The human rJwmhoideus major, with probably the r. minor also, 

 G., A, 375 ; Q., A, 191 ; rhomhcnde, S.-D., A, 11, 334 ; rhomboMe, Ch.,A,202; rhomhoideus, 

 Ch. (FI.), A, 188; rhomhoideus major, Miv., B, 145. 



Figures. — Ectal aspect (67) ; scapular end, ectal aspect (74) ; scapular end, ental 

 aspect (75); insertion area (44, 45). 



