142 LABORATORY MANUAL OF HUMAN ANATOMY 



Veins. 



(a) Large saphenous vein (V. saphena magna) (0. T. internal saphe- 

 nous vein) and its tributaries. 



Nerves. 



(a) Ilio-inguinal nerve (N . ilio-inguinalis] . 



(b) Lumbo-inguinal branch of genitofemoral nerve (N. lumbo-ingui- 



nalis N. genitofemoralis) (0. T. crural branch of genitocrural ) . 



(c) Lateral cutaneous nerve of thigh (N. cutaneus femoris lateralis) 

 (0. T. external cutaneous). 



Follow this nerve into the sheath formed for it by the fascia lata. 

 People whose occupations require excessive standing or walking (fascia 

 lata tense) sometimes suffer from a severe neuralgia of this nerve, 

 so-called " meralgia paraesthetica," or " Bernhardt's disturbance of 

 sensibility in the thigh." 



(d) Branches of femoral nerve (N. femoralis) (0. T. anterior crural). 



(da) Anterior cutaneous rami (rami cutanei anteriores) (0. T. 



middle and internal cutaneous). 



(db) Infrapatellar ramus of saphenous nerve (ramus infra- 



patellaris N. sapheni) (0. T. patellar branch of long 

 saphenous). Look for it near the cutaneous branch of 

 the A. genu suprema. 



(dc) Cutaneous ramus of obturator nerve (ramus cutaneus N. 



obturatorii). 



Bursa. 



Subcutaneous praepatellar bursa (bursa praepatellaris subcutanea). 

 Pinch up a bit of tissue in front of the patella with forceps and 

 make a transverse cut into the bursa. Explore with the finger. 



Deep Fascia of Thigh (Fascia lata). 



Clean the surface of the fascia lata carefully and examine its 

 attachments above and below. Compare with the description in 

 your systematic text-book. Pay especial attention to the fol- 

 lowing points : 



(a) Superficial layer of fascia lata and margo falciformis of fossa ovalis 



(0. T. iliac portion of fascia lata). 



(b) Deep layer of fascia lata or fascia pectinea (0. T. pubic portion of 



fascia lata). 



(c) Cribriform fascia (fascia cribrosa). This is really a thin continuation 



of (a). 



(d) Iliotibial band (tractus iliotibialis [Maissiati]). What is its sig- 



nificance ? 



(e) White lines corresponding to intermuscular septa in depth. 



(ea) Lateral intermuscular septum of thigh (septum intermus- 

 cular e [femoris} laterale) (0. T. external intermuscular 

 septum). 



. (eb) Medial intermuscular septum of thigh (septum intermus- 

 culare [femoris] mediale) (0. T. internal intermuscular 

 septum). 



