54 THE MUSCLES 



The Trunk 



Pec-to-ra'lis, moves the arm forwards. 



La-tis'si-mus dor'si, moves the arm backwards. 



Tra-pe'zi-us, 1 



Ser-ra'tus mag'nus, \ move shoulder-blade. 



Rhom-boi-de'us, J 



In-ter-cos'tals, move the ribs in respiration. 



E-rect'or spi'nae, move the trunk backwards. 



The Upper Limb 



Del'toid, raises the arm. 



Te'res ma'jor, lowers the arm. 



Sub-scap-u-la'ris, 



Spi-na'tus, 



Bi'ceps, bends forearm. 



Tri'ceps, straightens forearm. 



Pro-na'tor, j rotate forearm . 



Su-pi-na tor, ) 



Flex'or car'pi ra-di-a'lis, "] 



Fiex'or car'pi ul-na'ris, ' move the han(L 



Ex-ten'sor car'pi ra-di-a'lis, 



Ex-ten'sor car'pi ul-na'ris, J 



More than thirty muscles take part in moving the fingers 



The Lower Limb 

 Il-i'a-cus, 

 Pso'as mag'nu 

 Pec-tin-e'us, 

 Ad-duc'tor, 



Glu-te'us, j moye the thi h backwards. 

 Pyr-i-form is, ) 



Sar-to'ri-us (from Sar'tor, a tailor), crosses one thigh over the other. 

 Rec'tus, / move tne j forwards. 

 Vas'tus, ) 



Bi'ceps, I move tlie i eg backwards. 

 Grac'i-lis, ) 

 Tib-i-a'lis, ] 



So-le'us, 



Twenty muscles take part in moving the toes. 



QUESTIONS FOR TOPICAL REVIEW 



PAGB 



1. What can you state of the number and division of the muscles ? 33 



2. Describe the structure of the muscles 33, 34 



3. Their arrangement in pairs and consequent action 35 



