MYOLOGY. 57 



THYRO-PHARYNGEUS (SECOND MIDDLE CONSTRICTOR). 



Origin. External surface of thyroid cartilage. 

 Insertion. Median raphe. 



CRICO-PHARYNGEUS (INFERIOR CONSTRICTOR). 



Origin. Superficial face of cricoid. 



Insertion. Median raphe. 



Action. With three above, as constrictors of pharynx. 



Nerves. Glosso-pharyngeal, pneumogastric, sympathetic. 



STYLO-PHARYNGEUS. 



Origin. Great throideal cornua. 

 Insertion. Sides of pharynx. 

 Action. Elevates and dilates pharynx. 

 Nerves. $ame as preceding. 



TRUNK. 



FLESHY PANNICULUS. 



Origin. From flank to posterior border of olecranian mass of 

 muscles and pectoralis major. 



Insertion. One layer to anterior limb and one to small tro- 

 chanter. 



Nerve. Subcutaneous thoracic. 



CERVICAL REGION. RHOMBOIDEUS. 



Origin. First, fourth or fifth division vertebrae by spinous 

 processes. 



Insertion. Scapular cartilage. 



Action. Draws shoulder upward and forward. 



Nerve. Sixth cervical. 



LEVATOR ANGULI SCAPULAE. 



Origin. Transverse processes of last five cervical vertebrae. 



Insertion. Anterior triangular surface in inner face of scapula. 



Action. Draws scapula forward and upward. If scapula is 

 fixed, inclines neck to side. 



Nerve. Sixth cervical. 



SPLENIUS. 



Origin. To lip of cervical ligament and first dorsal vertebrae. 



Insertion. Into mastoid crest with small complexus, transverse 

 processes of atlas and third, fourth and fifth cervical vertebrae. 

 5 



