^•^- THE -MUSCLES OP THE HOESE, 



the last molar tootli_is inserted in tlxe corner of the naonth. and assists 

 the tongue an moving about the peUet of food in the act of mastication 

 /. Uetractor Lahu Infenons arises from the lower jaw, as far hack" as 



the last molar tooth, where it becompQ VilAnrlo/i -„.,-+i at ^ ■ ■, . 



ui tne eyenas. 10. lemporahs arises from the occimif frmifal ,,„>,• + i 

 squamous temporal, and sphenoid bones, and is'Se'd nl ' Sarcoid 

 process of the lower jaw ; its office is to close the mouth. 11 OrSw 

 0ns surrounds the mouth, is more developed in the upper than the 

 lower hp ; its action is to close the lips. ^^ *^® 



12. 12 12. Levator Humeri, arises from the mastoid process of ih^ 

 petrous temporal bone, the wing of the atlas, from the second Third and 

 fourth cervical vertebra., and from the lower portion of thriio-ame^tum 

 nucha, ; It IS inserted info the anterior and inferior part ofihSZT 



pro^s of the petrous ^^or^I^i^^ ^^'Z ^tl^t^!^ 

 fourth dorsal vertebra?, and is inserted into thp fi..l fi / ' i 7 i ^ 



and .ving of the atlas ;'it curves tTeh ad o„ one kle or '''T'^J'^''^r^ 

 It. 14. The Parotid Gland, which secretes the mo t .' i fi "^' "'f-'"' 

 of the saliva. '"'^'^ '^^'-^^'^es tlie most considerable portion 



A. Trapezius arises from the secnnrl +r. +lir> ^^ ±^ ^ 

 the ligamintum nuch^, as far forward L the thir''- "^r''"^' f '^ ^^'""^ 

 inserted into the spine of the scanullar^^l J^ ''?'^?^ vertebra ; it is 

 upwards and backwards ^ ' '''*'°'' '' *° ^^^^^ "^^^ ^^^^^^^^ 



