. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 154 LYMPHATICS. LOWER EXTREMITY. The superficial veins of the lower extremity are two in number. Internal saphena.—Commencing upon the inside of the foot and ankle it ascends upon the inside of the leg, and passing over the internal condyle, it traverses the superficial fascia of the thigh and enters the femoral vein at the saphenous opening of the fascia lata. External saphena.—Commencing upon the outer and posterio
. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 154 LYMPHATICS. LOWER EXTREMITY. The superficial veins of the lower extremity are two in number. Internal saphena.—Commencing upon the inside of the foot and ankle it ascends upon the inside of the leg, and passing over the internal condyle, it traverses the superficial fascia of the thigh and enters the femoral vein at the saphenous opening of the fascia lata. External saphena.—Commencing upon the outer and posterior parts of the foot, it ascends upon the back of the leg and enters the popliteal vein above the knee. ropliteal, is formed by the junction of the deep veins accompany- ing the anterior and posterior tibial arteries. Femoral vein.—The deep veins of the leg and thigh unite to form the femoral vein, which passes under Poupart's ligament, to become the external iliac vein. It is upon the inside of the femoral artery, and forms the outer boundary of the Fig. 136. pj-^^^-ai i^ LYMPHATICS. Lymphatics are small pellucid ves- sels found in all portions of the body but the teeth. They are exceedingly numerous, and found most constantly in company with veins. They enter the lymphatic glands, which are most numerous in the neck, groin, axilla, loins, and mesentery, and then emerge from them. The lymphatics of the intestine, com- mence in the villi of the intestine and are often called lactcals,and contain the chyle. They have three coats, like arteries, and present a knotted appearance when distended, owing to the existence of sinuses and valves. ZfCft thoracic duct.^^—This is the principal lymphatic vessel of the body; it receives the contents of the lymphatics or absorbents of the lower extremity, by an enlargement called receptaculum chyli^^^ and entering the thorax through the hiatus aorticus ; it traverses the tho- rax through the posterior mediastinum in front of the ve
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