MUSCLES 4 



the teres major, but twisting upon itself it is inserted anteriorly to 

 teres, and lowest fibres are inserted highest. 



BACK, 2ND LAYER. 



Levator anguli scapulae : posterior tubercles of transverse 

 processes of upper three or four cervical vertebrae (T) verte- 

 bral border of scapula between spine and superior angle (F) 

 (5th cervical [nerve to rhomboidei] and deep branches from 

 3rd and 4th cervical). [Elevates scapula.] Forms part oj 

 floor of posterior triangle of neck. 



Rhomboideus minor : ligamentum nuchae, spinous processes 

 of yth cervical and ist dorsal vertebrae(T) vertebral border 

 of scapula, opposite root of spine(p) (sth cervical). [Elevates 

 and draws back scapula.] 



Rhomboideus major : spines and supra-spinous ligaments 

 of upper 4 or 5 dorsal vertebrae, below preceding(x) vertebral 

 border of scapula between spine and inferior angle (F) (5th 

 cervical). [Elevates and draws back scapula.] Sometimes 

 the fibres end in a tendinous arch near the bone. 



BACK, 3RD LAYER. 



Serratus posticus superior: ligamentum nuchae, spinous 

 processes of yth cervical and two or three superior dorsal 

 vertebrae, supra-spinous ligament(A) upper borders and outer 

 surfaces of 2nd, 3rd, 4th, and 5th ribs external to angle(p) 

 (External posterior branches of dorsal). [Elevates upper 

 ribs.] 



Serratus posticus inferior: spinous processes of nth and 

 1 2th dorsal, and ist and 2nd lumbar vertebrae, and from 

 tendon of origin of latissimus dorsi and the fascia lum- 

 borum(A) inferior borders of lower four ribs external to 

 angle(p) (External posterior branches of dorsal). [Draws 

 lower ribs downwards and backwards, fixing them for dia- 

 phragm to act from.] 



The vertebral aponeurosis. A thin membrane, attached to 

 the spines of the dorsal vertebrae, and passing outwards to 

 the angles of the ribs. Below it is joined to the upper edge 

 of the inferior serratus and the tendon of latissimus, whilst 

 above it passes beneath the superior serratus and splenius to 

 become continuous with the deep fascia of the neck. It binds 

 down the erector spinae in the groove between the vertebral 

 spines and the angles of the ribs. 



Splenius : lower of ligamentum nuchae, spinous processes 

 of yth cervical and upper 6 dorsal vertebrae, supra-spinous 



