154 



ANA TOMICAL TECHNOL OGY. 



attachment are enclosed by interrupted lines. Following the method of Gray (A) and 

 H. S. Williams (1), the origins are indicated by dots and the insertions by short linen. It is 

 easy to associate these two marks with the letters o and i t which form respectively the 

 initials of origin and insertion. 



The scapula affords origin to the following 10 muscles : Siibscapularis, supraspinatits, 

 infraspinatus, meditriceps, spino-deltoideus, acromio-deltoideus, teres (major), micottalis 



(teres minor), biceps and cora- 

 coideus. Upon it are inserted 

 the following 7 muscles : 

 Acrom io-trapez ius, sp ino-tra- 

 peziiis, rhontioideus, serrntus, 

 levaior anyuli scapulae, l&cator 

 claviculce and occipito-scapu- 

 laris. On the figure the in- 

 sertion area of the last named 

 muscle is represented as too 

 near the coraco-vertebral an- 

 gle. 



386. Collum Neck. 

 This is the thickened and 

 *7 slightly constricted portion of 

 / the scapula connecting the 

 /' glenoid end or angle with the 

 body of the bone. According 

 to Quain (A, II, 83), its limits 

 are differently assigned by 

 anatomists and surgeons. 



387. Foramen Nutrie.ns 

 The vascular foramen. There 

 may be 1, 2 or 3 of these fora- 

 mina upon the ental aspect, 

 FIG. 43. THE ENTAL ASPECT OF AN ADULT LEFT and their location is quite 

 SCAPULA ; x 1. variable. They always enter 



obliquely so as to point toward 



the glenoid end of the bone, and at least one of them is traceable to the base of the 

 mesoscapula. 



Fossa Glenoidea. See description of Fig. 45, 399. 



388. Fossa ubsc<ipularix. This name is applied to the entire ental surface of the 

 bone ; as shown upon the figure, however, the muscle of the same name does not arise 

 from the whole area. Most of the margin of the fossa is more or less raised. The shaded 

 area represents a shallow longitudinal furrow which coincides nearly with the mesoscap- 

 ula (Fig. 44). 



Between the furrow and the coracoid margin aro two well marked ridges for the attach- 

 ment of tendinous intersections of the M. siibscapularis ; there are usually other ridges 

 which are most distinct in old individuals. Near the glenoid margin is a prominent ridgo 

 which separates the Fs. subscnpularis proper from the shallow furrow which gives origin 

 to the M. tere*. The M. tnicostalis arises from the middle two fifths of the Mrg. gknoi- 

 deus, and its glenoid third gives origin to the M. meditriceps. 

 Metucromion. This is better shown in Fig. 44 and 45. 

 389. Processes CoracoidcusT\ie coracoid process. This, as better seen in Fig. 45, 



