30 



ANATOMY FOR NURSES. 



[Chap. IV. 



the femur fits. Other points of special interest to note are 

 (1) the spinous process formed by the projection of the crest 

 of the ilium in front, which is called the anterior superior 

 spinous process, and which is a well-known and convenient 

 landmark in making anatomical measurements ; (2) the largest 



Fig. 21. — Os Innominatum. Outer surface. R, O, crest of ilium, just below 

 is seen the anterior superior spinous process ; J, tuberosity of ischium ; T, part of 

 pubes, between J and T is seen the thyroid foramen : //, acetabulum, beloAv H is 

 seen end of pubic bone which, with its fellow of opposite side, forms the symphysis 

 pubis. (For further illustration, vide Figs. 46 and 47.) 



foramen in the skeleton, known as the door-like or thyroid 

 foramen, situated between the ischium and pubes ; and (3) the 

 symphysis pubis, or pubic articulation, which also serves for 

 a convenient landmark in making measurements. 



The femur is the longest, largest, and strongest bone in the 

 skeleton. In the erect position it is not vertical, the upper 



