PRACTICAL ANATOMY. 



The intrinsic pelvic articulations arc : 



(i) The sacro-iliac, between the sacrum and ilium ; (2) the sacro-sciatic, 

 between the sacrum and ischium ; (3) the interpubic, between the pubic bones ; 

 (4) the sacro-coccygeal, between the sacrum and coccyx. 



The extrinsic ligaments are : 



(i) The sacro-lumbar, between the sacrum and the last vertebra of the lum- 

 bar region ; (2) the femoro-innominate group of ligaments. 



Name tlie ostcological points of interest in and about the pelvis. 



(i) Symphysis pubis, between the pubic bones; (2) pubic crest, limited by 

 the angle and spine of pubis ; (3) ilio-pubic line, limited by the spine and ilio- 

 pubic eminence ; (4) the ilio-pubic eminence, at the junction of pubis and ilium ; 



FIG. 323. FEMUR, POSTERIOR ASPECT. 

 1,1. Linea aspera. 2,2. External division. 3. Internal division. 4,4. Inferior divisions. 5. Iliad. 

 6. Depression for attachment of round ligament. 7. Neck. 8. Great trochanter. 9. liigital or 

 trochameric fossa. IO. Lesser trochanter. II. Outer coiulyle. 12. Inner condyle. 13. Inter 

 condyloid notch. 14. Outer tuberosity. 15. Inner tuberosity. 



(5) the iliac crest, limited by the superior iliac spines, anterior and posterior; (6) 

 the acetabulum, at the junction of the ilium, ischium, and pubes ; (7) the fossa 

 acetabuli, the non-articular part of the acetabulum ; (8) the cotyloid notch, an 

 interruption in the acetabular brim; (9) the lesser sacro-sciatic notch, between 

 the ischial tuber and spine ; (10) the ischial spine, between the greater and les.ser 

 sciatic notches ; (i i) the tub'er of the ischium, one of the grand divisions of the 

 ischium ; (12) the ischio-pubic ramus, between the pubes and ischium ; (13) the 

 obturator foramen, bounded by the pubes and ischium; (14) the pelvic inlet, 

 between the true and false pelvis ; (15) the subpubic arcade, between tin- ischio- 

 pubic rami ; (16) the anterior superior iliac spine, for the insertion of Poupart's 

 ligament ; (17) the anterior inferior iliac spine, lor the oiigin of the straight head 

 of the reetus; (18) the anterior interspinous notch, between the anterior iliac 



