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 thyroideal cornua. 

 Insertion. — Sides of pharynx. ^ 



Action. — Elevates and dilates pharynx. 

 Nerves. — Same as preceding. 



TRUNK. 



FLESHY PANNICULUS. 



Origiji. — From flank to posterior border of olecranian mass of 

 muscles and pectoraHs major. 



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

 chanter. 



Nerve. — Subcutaneous thoracic. 



CERYICAL REGION. RHOMBOIDEUS. 



Origin. — First, fourth or fifth division vertebrae by spinous pro- 

 cesses. 



Insertion. — Scapular cartilage. 



Action. — Draws shoulder upward and forward. 



Nerve — Sixth cervical. 



LEVATOR ANGULI SCAPUL.^. 



Oiigin. — Transverse processes of last five cervical vertebrse. 

 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 Hp 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. 



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