- A Visual Guide -
Rob Swatski Assistant Professor of Biology HACC - York Campus

Gluteus maximus Extends and laterally rotates thigh; adducts the hip
2

3
Gluteus medius Medially rotates thigh; abducts hip

4
Gluteus medius

5
Gluteus minimus Medially rotates thigh; abducts hip

Tensor fasciae latae Abducts, medially rotates, and flexes thigh; stabilizes hip
6

Tensor fasciae latae
7

8
Piriformis Abducts and laterally rotates thigh at hip

Gemellus superior Laterally rotates thigh at hip
9

10
Obturator internus Abducts and laterally rotates thigh at hip

Gemellus inferior Laterally rotates thigh at hip
11

12
Psoas major Flexes thigh at hip; flexes vertebral column

Psoas major
13

14
Psoas major

15
Iliacus Flexes thigh at hip

16
Pectineus Adducts and flexes thigh at hip

17
Adductor longus Adducts and flexes thigh at hip; assists in medial rotation

18
Adductor magnus Adducts and extends thigh at hip; assists in medial rotation

19
Gracilis Adducts thigh at hip and flexes leg at knee; assists in medial rotation

Gracilis
20

Gracilis
21

22
Sartorius Flexes, abducts, and laterally rotates thigh at hip; flexes knee

23
Rectus femoris Extends leg at knee and flexes thigh at hip; part of the quadriceps group

24
Vastus medialis Extends leg at knee; part of the quadriceps group

Vastus medialis
25

26
Vastus lateralis Extends leg at knee; part of the quadriceps group

27
Biceps femoris Flexes leg at knee and extends thigh at hip; belongs to the hamstring group

Biceps femoris
28

Semitendinosus Flexes leg at knee and extends thigh at hip; belongs to the hamstring group
29

Semimembranosus Flexes leg at knee and extends thigh at hip; belongs to the hamstring group
30

31
Gastrocnemius Plantar flexion of ankle

Gastrocnemius
32

33
Soleus Plantar flexion of ankle

Soleus
34

Soleus
35

36
Flexor digitorum longus Flexes lateral four toes; plantar flexion and inversion of foot

37
Flexor hallucis longus Flexes great toe; plantar flexion and inversion of foot

38
Tibialis anterior Dorsiflexion of foot at ankle; inversion of foot

39
Extensor digitorum longus Extends lateral four toes; dorsiflexion of ankle and eversion of foot

Extensor digitorum longus
40

41
Fibularis (Peroneus) longus Plantar flexion and eversion of foot; stabilizes lateral ankle and arch of foot

Fibularis (Peroneus) longus
42

Fibularis (Peroneus) longus
43

44
Fibularis (Peroneus) brevis Plantar flexion and eversion of foot

Fibularis (Peroneus) brevis
45

Fibularis (Peroneus) brevis
46

I N D E X
Adductor longus: 17 Adductor magnus: 18 Biceps femoris: 27-28 Extensor digitorum longus: 39-40 Fibularis (Peroneus) brevis: 44-46 Fibularis (Peroneus) longus: 41-43 Flexor digitorum longus: 36 Flexor hallucis longus: 37 Gastrocnemius: 31-32 Gemellus inferior: 11 Gemellus superior: 9 Gluteus maximus: 2 Gluteus medius: 3-4 Gluteus minimus: 5 Gracilis: 19-21 Iliacus: 15 Obturator internus: 10 Pectineus: 16 Piriformis: 8 Psoas major: 12-14 Rectus femoris: 23 Sartorius: 22 Semimembranosus: 30 Semitendinosus: 29 Soleus: 33-35 Tensor fasciae latae: 6-7 Tibialis anterior: 38 Vastus lateralis: 26 Vastus medialis: 24-25 47

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