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Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 7. Lower Limb

Atlas of Human Anatomy in Cross Section: Section 7. Lower Limb

Plate 7.1

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S.
Peer Review Status: Externally Peer Reviewed


Plate 7.1

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Profundus femoris a. and v.
2. Vastus medialis m.
3. Femoral nerve br. and perforating a. and v.
4. Femoral a. and v.
5. Sartorius m.
6. Adductor brevis m.
7. Great saphenous v.

8. Gracilis m.
9. Obturator nerve
10. Fascia lata
11. Adductor magnus m.
12. Tendon m. semimembranosus
13. Semimembranosus m.
14. Artifact

15. Semitendinosus m.
16. Biceps femoris (long head) m.
17. Biceps femoris (short head) m.
18. Sciatic nerve
19. Lateral intermuscular septum

20. Vastus lateralis m.
21. Femur
22. Linea aspera of femur
23. Vastus intermedius m.
24. Rectus femoris m.

The muscles of the thigh are arranged in three groups based on their position and nerve supply: (a) The muscles on the front of the thigh (anterior or extensor group) are supplied by the femoral nerve (3). These muscles are the quadriceps femoris (rectus femoris) (24) and the three vasti (2, 20, 23) and sartorius (5). The second group of muscles are on the medial side of the thigh (adductor group) and are supplied by the obturator nerve (9). These include pectineus (see Section 6), gracilis (8), adductor longus (see Section 6), adductor brevis (6), adductor magnus (11), and obturator externus (see Section 6). (c) The third group of muscles are on the back of the thigh (posterior, flexor, or hamstring group) and are supplied by the sciatic nerve (18). These muscles are the biceps femoris (16, 17), semitendinosus (15), and semimembranosus (12).

The linea aspera of the femur (22) provides attachment for the vastus medialis (2), adductor longus (see Section 6), adductor magnus (11), adductor brevis (6), short head of biceps femoris (17), and vastus lateralis (20) muscles.

The lateral intermuscular septum (19) separating the anterior extensor group of muscles from the posterior flexor group and the important fascia lata (10) are seen.

The great saphenous vein (7), femoral artery and vein (4), perforating artery and vein (3), and the deep femoral artery and vein (1) are identified.

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