THE VASCULAR SYSTEM. 
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Or 
ws 
Tributaries.—In addition to the venze comites of the anterior and posterior tibial 
arteries, it receives tributaries which correspond with the branches of the popliteal artery, 
and it also receives one of the superficial 
\ veins of the leg, viz. the external or short 
\\\ saphenous vein. 
The femoral vein (v. femoralis) is 
the direct continuation of the popliteal 
vein. It commences at the junction of 
Superficial epigastric vei ea : ss Seeley c 
Psipeticial Petie  voe middie and lower thirds of the thigh, 
mee at the opening in the adductor magnus 
Superticial pudie vein 
muscle. It then ascends through Hunter's 
canal, and through Scarpa’s triangle, and 
Femoral vein 
Long saphenous vein terminates a little to the inner side of 
. idc mf ye ta TO 
Shae Water i the middle of Poupart’s lgament by 
femoral vein becoming the external iliac vein. 
internal eapericial In Hunter’s canal it les behind, and 
femoral vein at first to the outer side of, the femoral 
artery, and upon the adductors longus 
and magnus which separate it from the 
profunda vessels. In the lower part of 
Searpa’s triangle it is behind and to the 
inner side of the artery, and immediately 
in front of the profunda vei which 
separates 1t from the profunda artery, 
but in the upper part of Scarpa’s triangle 
it is directly on the inner side of the 
femoral artery. About one and a-half 
inches below Poupart’s ligament it enters 
the middle compartment of the femoral 
sheath, through which it ascends to its 
termination, lying between the compart- 
ment for the femoral artery on the outer 
side and the crural canal on the inner 
side. 
——Long saphenous vein 
valves, one near its termination and the 
other just above the entrance of its pro- 
funda tributary. 
Tributaries. —It receives tributaries 
(venze comites) which correspond with the 
branches of the femoral artery and the larger 
of the two superficial veins of the lower 
Long saphenous vein extremity, viz. the long saphenous vein, 
which enters the femoral vein where that 
vessel lies in the middle compartment of the 
femoral sheath. 
Dorsal venous arch The external iliac vein (v. iliaca 
externa, Figs. 569, 572, and 587) is the 
upward continuation of the femoral vein. 
It commences on the inner side of the 
termination of the external ilac artery, 
immediately behind Poupart’s hgament, 
and ascends along the brim of the pelvis 
to a point opposite the lumbo-sacral articulation, and immediately behind the 
internal iliac artery, where it ends by joining the internal iliac vein to form the 
common iliac vein. It lies at first on the inner side of the external iliac artery, 
but on a somewhat posterior plane, and then directly behind the artery, whilst just 
before its termination it crosses the outer side of the internal iliac artery, and 
separates that vessel from the inner border of the psoas muscle. In its whole 
Fic. 589.—THE INTERNAL OR LONG SAPHENOUS 
VEIN AND ITS TRIBUTARIES. 
It usually contains two bicuspid 
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