THE LYMPHATIC SYSTEM. 



259 



Fig- 173- 



(i) The brachio-ulnar lymph-sac {Saccus bracliialls ulnaris), 

 (Fig-. 1 70 6) is situated between the first and second septa along- the 

 extensor and uhiar surfaces. 



(2) The brachio-radial lymph-sac [Saccus 

 hrachiaUs rarrialis), (Fig-. 169 7) is placed 

 along- the extensor and radial surfaces. 



(3) The anterior brachial lymph-sac 



[Saccus hrachlaJis anticvs), (Fig*. 170 s) lies 

 on the flexor surface between the second 

 and third septa ; it is a long cavity and in- 

 terrapted by connective-tissue bands, in 

 which the tendon of the M. sterno-radialk 

 and the nerve and vessels are situated. 



(4) The axillary lymph-sac {Saccus axil- 

 laris) corresponds to the iliac lymph-sac; 

 it is bounded by the divisions of the ventral 

 septum. 



In the hand no large lymph-space exists ; 

 the skin is attached by numerous bands to 

 the underlying structures. 



Dissection to show tlie lliau 

 lympli-sac. 



(] M. glutaeus. 



i.e. M. ilio-coccygexis. 



m.c. M. cutaneus iliacus. 



o M. obliq. abdora. externus, 



)• M. rectus. 



-Ç Doi-saJ septum. 



<S' Iliac septum. 



H'" Portion of dors;d septiim, 



wliioli forms the roof of the 



iliac lympli-sac. 

 V M. vastus externus. 

 * Aperture, by whicli [tlie iliac 



lymph - sac communicates 



witli the abdominal cavity. 



C. The Lymph-sacs of the Hinder Ex- 

 tremity. 



a. The septa. 



(i) The superior femoral septum [Sep- 

 f urn fémorale superi/is), (Figs. 1 69 and 1 75/') 

 is attached above to the ing-uinal septum 

 near the posterior lymph-heart; and is 



continued, from this point, over the 31. vastus ejctermis and along 

 the M. triceps to the knee. 



(2) The inferior femoral septum {Septv m fémorale inferius), (Fig-s, 

 170 and 175/") runs from the ing-uinal septum near the point 

 of insertion of the M. rectus afjdominis, along- the 

 il/, rectus iuternus minor to the knee. 



(3) The intermediate femoral septum [Septum, 

 fémorale intermedium), (Figs. 169 and \']Sf") passes 



from near the posterior lymph-heart over the 

 M. semimembranosus and the M. rectus internum minor 

 to join the inferior femoral septum. 



s 2 



Fig. 174. 



Plan of attachments 

 of the inferioi fe- 

 moral, inguinal, 

 and perineal septa- 



