514 LABORATORY MANUAL OF HUMAN ANATOMY 



the plexus hypogastricus and the ureter? What relation does 

 the A. haemorrhoidalis superior bear to the artery of the left 

 side? Note that the common iliac artery bifurcates below (vide 

 Fig. 285) into 



(a) Hypogastric artery (A. hypogastrica) (0. T. internal iliac). The 



branches of this artery will be studied when the pelvis is dissected. 



(b) External iliac artery (A. iliaca externa}. 



(ba) Inferior epigastric artery (A. epigastrica inferior) (0. T. 



deep epigastric). 

 (baa) Pubic branch (ramus pubicus). 



(1) Obturator branch (ramus obturatorius) . 

 (bob) External spermatic artery (A. spermatica externa) 



(0. T. cremasteric) (in the male). 

 (bac) Artery of round ligament (A. Lig. teretis uteri) (in 



the female). 



(bb) Deep circumflex iliac artery (A. circumflexa ilium profunda). 



Common Iliac Veins (Vv. iliacae communes). 



(a) External iliac veins (Vv. iliaca externa). 



(aa) Inferior epigastric vein (V. epigastrica inferior). 



(ab) Deep circumflex iliac vein (V. circumflexa ilium profunda). 



(b) Hypogastric vein (V. hypogastrica) (0. T. internal iliac vein). 



Dissect out at this stage the 

 (ba) Iliolumbar vein (V. iliolumbalis). 



The middle sacral vein (V. sacralis media) will be found 

 emptying into the left common iliac vein. Other branches of 

 the hypogastric vein may be worked out later when the pelvis 

 is dissected. 



Lymphatics. 



Dissect out the different lymph-glands; also the lymph- 

 trunks (trunci lumbales, truncus intestinalis), which empty into 

 the dilated beginning of the ductus thoracicus. This dilatation 

 is known as the chyle-cistern (cisterna chyli) (O. T. receptacu- 

 lum chyli). (Vide Fig. 249.) Look for it between the aorta 

 abdominalis and the crus mediale of the diaphragm on the right 

 side. 



Examine the following: 



Lymph-glands. 



(a) Iliac (lymphoglandulae iliacae). 



(b) Coeliac (lymphoglandulae coeliacae). 



(c) Lumbar (lymphoglandulae lumbales). 



Lymph-plexuses. 



(a) External iliac (plexus [lymphaticus] iliacus externus). 



