LITTLE PIKED WHALE. 



265 



Muscles of the Neck. 



Name. 

 Mastohumeral 



Longus colli 



Trachelomastoid 



Origin. 

 Transverse processes of anterior cervi 



cals and paramastoid process 

 3 heads: (1) ventral surface of cervi- 

 cals 3-7 and dorsals 1,2; 



(2) outer part of first rib; 



(3) posterior part of 3 first 

 ribs 



2 heads: (1) transverse process of 

 first dorsal 



(2) centra of posterior 3 or i 

 4 cervicals 



Insertion. 

 Tendinous, anterior inner part of 

 humerus 



Basilar process of occipital bone and 

 trans\'erse processes of anterior cervi- 

 cals 



Mastoid process of squamosal 



Pectoralis major 



Pectoral is minor 

 Latissimus dorsi 



Rhomboideus 

 Serratus magnus 



Levator anguli scapulae 



Intercostalcs 

 Omohyoid 



Scalenus anticus 



Sternomastoid 



Sternohyoid 

 Sternothvroid 



Mnsch'n of llic Truttk. 

 a. Muscles of thorax. 



Under side of sternum and five first 



sternal ribs 

 Lacking 

 Spines of all dorsals and few anterior 



lumbar vertebrae 

 Same, by this aponeurosis 



(1) S posterior ribs and aponeurosis of 

 abdomen ; 



(2) a flat slip from second rib 

 Pyramidal, from transverse process of 



7th cervical 

 20 on each side in two sets; (1 ) external ; 

 Coracoid process and anterior edge of 



scapula 

 Sternal end of first rib 



(1) mid-line of sternum, and ends 1 

 of ribs 1 and 2 [ 



(2) external part of first rib J 

 LTpper border of sternum 



Wanting 



Tendinous, front of humerus head 



Lacking 



Inner lower edge of humerus 



Posterior edge of scapula 



Posterior edge of scapula, just above 



angle 

 Same 

 Cervical angle of scapula 



(2) internal, connecting ribs 

 Posterior cornu of hyoid bone 



Trilnsverse processes of anterior cervi- 

 cals 



By tendon into mastoid process of 

 squamosal 



Lower edge of body of hyoid bone 

 W^anting 



b. Muscles of abdomen and tail. 



Obliquus externus 



Obliquus internus 



Transversalis abdominis 

 Rectus abdominis 



By slips from 8 last ribs 



Tendinous from lumbar fascia 



Fleshy from lumbar fascia to 10th rib 

 Tendinous from 3 or 4 anterior chevron 

 bones 



By a large tendinous sheet into linea 



alba 

 Linea alba and cartilaginous ends of 



S or 9 last ribs 

 Tendinous into linea alba 

 By tendinous expansion into 2d to 6th 



ribs 



