324 



PRACTICAL ANATOMY. 



the artery, according to the rule governing the relations of veins and arteries 

 below the diaphragm. (2) The long saphenous nerve. Note that this nerve is on 

 the outer side of the artery. (3) The communicating branch to the obturator 

 nerve via the subsartorial plexus. 



Explain the quadriceps femoris. 



This is a collective noun indicating a four-headed muscle, on which depends 



LEVEILLE 0i f.'t* 



FIG. 225. MU.-.CLE; OF THE ANTERIOR ASTECT <>K TIIK I'.ODY. 

 \. Pectoralis major. 2. Its clavicular fasciculus. 3. Fasciculus attached to abdominal aponeurosi 

 4,4. External oblique. 5,5. Serratus magnus. 6,6. Anterior border of latissimus dorsi. 7. De 

 cassation of tendinous fibers of pectorales majores. 8. Ensiform cartilage. 9, 9. Abdominal 

 aponeurosis. IO, IO. Linea alba. II. Umbilicus. 12, 12, 12. Tendinous intersections of rectus 

 abdominis. 13,13. External abdominal ring. 14. Pyramidalis. 15,15. External border of rect 

 abdominis. 16. Sterno-hyoid. 17. Omo-hyoid. 18. Sterno-mastoid. 19. Cervical portion 

 trapezius. 20. Deltoid. 21. Biceps brachialis. 22. Pectineus. 23. Sartorius. 24. Kectus 

 femoris. 25. Tensor vaginre femoris. 



extension of the leg. The individual muscles forming the extensor quadriceps 

 femoris all converge to form one tendon, the ligamentum patellae, which is 

 inserted into the tubercle of the tibia. (Fig. 220.) These muscles, from their 

 diverse origin and extensive attachments t< the- femur and ilium, represent both 

 strength and celerity of motion not an easy combination. The rectus, vastus 



