Chap. 9.] of the Plates. 13$ 



Oppofite to dy their tranfverfe proceiles. 



ty The os facrum, with its five divifions. 



fy Os innominatum, divided into 



gy Os ilium, 



by Os pubis, 



i } Os ifchium, 



Oppofite to /, the foramen thyroideum. 



SUPERIOR EXTREMITY. 



a, The clavicle, fixed before to the firft piece of the 

 (lernum, and outwards to the acromion of th 

 fcapula, 

 l> 3 The fcapula. 



Above by the cervix of the fcapula. 

 Oppofite to it, the inferior cofta ; and below the 

 outward extremity of the clavicle, the fuperior 

 cofta, and coracoid procefs, are feen. 

 ft the os humeri. 



The upper end of it, which is connected to the 

 cavity of the fcapula, named the glenoldy below 

 the acromion, is named its bead or ball ; on each 

 fide of which is feen the tubercles, named the 

 external and internal > and between thefe, a groove 

 for lodging the long head of the biceps flexor 

 cubiti. 



d> The internal condyl. 

 e, The external condyl. 



Between d and e, the trochlea, upon which the 



ulna moves. 

 /, The radius. 



The upper end, which moves on the external cn^ 

 dyle of the os humeri, is named its head-> below 

 that, the tubercle for the infertion of the biceps 

 flexor cubiti, and between thefe the cervix. 

 The inferior end of it is connected to the carpus. 

 K4 



