a.t. M. acromio-trapezius. 
St. “¢ spino-trapezius, reflected. 
s.d. “* spino-deltoideus. 
iT. ‘* triceps extensor antebrachii. 
Ac. Acromion process. 
Mss. Root of meso-scapular spine. 
S.d.1. Part of origin of spino-deltoid. 
Fig. 5:—Muscles of right side of head, neck, and showder. x 2. 
ZY. M. zygomaticus. 
te. ** temporalis. 
d.t. “© delto-trapezius. 
c.d.t.  ** cleido-trapezius, with M. delto-trapezius, conjoint. 
c.t. ** cleido-trapezius. 
a.t. ** acromio-trapezius. 
Sit. ‘* spino-trapezius. 
tr. ** triceps extensor antebrachii. 
s.d. ‘© spino-deltoideus. 
S.m. ** sterno-mastoideus. 
T Ob: ‘* cervico-auricularis. 
a.d. ‘¢ mandibulo-auricularis (attrahens aurem). 
mM. ‘¢ masseter. 
m.h.  ** mylo-hyoideus. 
B.g. Buecal gland. 
Ol. Olecranon process. 
Puate VI. 
Vig. §.—Right anterior extremity. Muscles of axillary region and mner 
aspects of scapula and arm, and of palmar surface of forearm (clavicle 
turned outwards out of sight). x 4. 
rabd. M. rectus abdominis. 
SC3 ** subclavius. Its insertion has been exposed by turning 
outwards the clavicle with the clavicular deltoid as 
well as the delto-trapezius. 
55058: ‘** subscapularis. 
tm. ** teres major. 
S.MU). ‘* serratus magnus (anterior major portion). 
8.t7. Scapular head of triceps. 
a.h.tr. Inner humeral head of triceps. 
ld. M. latissimus dorsi. 
Ld.t. Its tendon or aponeurosis where it spreads out over flexor 
carpi ulnaris. 
an.t. M. anconeus internus (epitrochleo-anconeus). 
Ca *¢ flexor carpi ulnaris (condylar and olecranon heads). 
ab.7. ‘* abductor pollicis. Its origin overlies the palmar sesamoid 
bone, but is net attached to it, arising merely from 
the palmar fascia. 
d.t. ‘** delto-trapezius (pulled aside). 
h.p. Humeral panniculus fibres becoming inserted into axillary 
tendon of insertion. 
p.t. M. pectoralis a | Cut; a and ) turned somewhat outwards, 
p.b. m: sy b +  andc turned upwards to show tendon 
p.c. ; se 3 c of panniculus, biceps, &c. 
73056: ‘* biceps flexor antebrachii. 
b.a. ‘* brachialis anticus. 
C..7 ** extensor carpi radialis. 
