DETAILED ANATOMY OF LIMB MUSCLES 
57 
Name of muscle 
Origin 
Insertion 
ii. Quadratus femoris. 
Sciatic tuber. 
Extensor side of shaft of 
femur, slightly distal to the 
level of the greater tro¬ 
chanter. 
12. Obturator internus, and the 
two gemelli. 
Medial aspect of membrane 
which covers the obturator 
foramen, and from the 
medial surface of the pubis 
and ischium. 
Trochanteric fossa. 
13. Obturator externus. 
Lateral aspect of the obtura¬ 
tor membrane. 
Trochanteric fossa. 
Muscles of the medial surface of the thigh 
14. Sartorius. 
Middle of inguinal ligament. 
Blends with the anterior edge 
of the gracilis (15). 
15. Gracilis. 
Whole length of symphysis 
pubis. 
By a broad fascia which 
inserts into the proxima 
part of the medial border of 
the tibia. 
16. Adductor magnus. 
Posterior edge of ischium 
and sciatic tuber. 
Medial edge of distal end of 
femur and medial condyle 
of tibia. 
17. Semitendinosus, imbedded in 
the adductor magnus (16). 
Sciatic tuber. 
By a long tendon which 
emerges from the adductor 
magnus (16), near the 
distal end of its outer sur¬ 
face, and is inserted into the 
medial condyle of the tibia. 
18. Adductor longus. 
Whole length of symphysis 
pubis. 
Middle third of shaft of 
femur. 
19. Adductor brevis. 
Anterior end of symphysis 
pubis. < 
Shaft of femur. 
20. Pectineus. 
Pubic arch. 
Shaft of femur. 
1 
Muscles of the extensor surface of thigh 
21. O ua driceps femoris, consist¬ 
ing of the following parts: 
(a) Superficial head of rec¬ 
tus femoris. 
t 
Ventral border of the os 
ilium. 
By a strong thick tendon, 
the ligamentum patellae (in 
which the patella is em¬ 
bedded), into the crest of 
the tibia. 
(6) Deep (short head of 
rectus femoris partly 
enwrapped by vastus 
lateralis. 
Posterior part of ventral 
border of os ilium. 
(c) Vastus medialis. 
Neck of the femur. 
(d) Principal (superficial 
head of vastus lateralis 
Neck of femur and greater 
trochanter. 
( e ) Accessory (deep) head 
of vastus lateralis. 
Femur close to origin of 
superficial head. 
(/) Vastus intermedius. 
Shaft of femur. 
Muscles of the lower leg and foot 
22. Tibialis anterior. 
Lateral condyle and anterior 
crest of the tibia. 
Proximal end of second 
(apparent first) metatarsal. 
