Leg muscles

Question 1

Extensor digitorum brevis

Answer 1

Innervation: Deep Fibular Nerve
Action: Extend 4 medial digits at MTP

Question 2

Extensor halluces brevis

Answer 2

Innervation: Deep Fibular Nerve
Action: Extend toe

Question 3

Abductor digiti minimi

Answer 3

Innervation: Lateral plantar nerve
Action: Abuct and flexes 5th digit

Question 4

Abductor hallucis

Answer 4

Innervation: Medial plantar nerve
Action: Abducts and flexes 1st digit

Question 5

Flexor digitorum brevis

Answer 5

Innervation: Medial plantar nerve
Action: Flexes digits 2-5

Question 6

1st medial Lumbrical

Answer 6

Innervation: Medial plantar nerve
Action: Flexes at MTP, extends at PIP joints

Question 7

2-4 lateral lumbiricals

Answer 7

Innervation: Lateral plantar nerve
Action: Flexes at MTP, extends at PIP joints

Question 8

Quadratus plantae

Answer 8

Innervation: Lateral plantar nerve
Action: Assists in flexion of toes

Question 9

Adductor hallucis

Answer 9

Innervation: Lateral Plantar nerve
Action: Adduct 1st digit. Maintains Transverse arch.

Question 10

Flexor digiti minimi brevis

Answer 10

Innervation: Lateral Plantar Nerve
Action: Flexes 5th digit (proximal phalynx)

Question 11

Flexor hallucis brevis

Answer 11

Innervation: Medial pantar nerve
Action: Flexes proximal Phalynx of first digit

Question 12

Dorsal interossei, DABS

Answer 12

Innervation: Lateral plantar nerve
Action: Abduct digits 2 (bot sides),3,4,5, 2 is midline + flex

Question 13

Plantar interossei, PAD

Answer 13

Innervation: Lateral plantar nerve
Action: Adduct digits 3,4,5 + flex

Question 14

Gluteus maximus

Answer 14

Innervation: Inferior gluteal nerve
Action:Extends thigh, laterally rotates, abducts thigh. Extends knee.

Question 15

Gluteus minimus

Answer 15

Innervation: Superior gluteal nerve
Action: Abduct, medially rotates thigh

Question 16

Inferior gamellus

Answer 16

Innervation: Nerve to quadratus femorus
Action: Laterally rotates thigh,

Question 17

Oburator internus

Answer 17

Innervation: Nerve to obturator internus
Action: Laterally rotates, abducts thigh

Question 18

Piriformis

Answer 18

Innervation: L5, S1, S2
Action: lat rotates hip, abducts thigh

Question 19

Superior gemellus

Answer 19

Innervation: Obturator internus
Action: lateral rotation

Question 20

Tensor fasciae latae

Answer 20

Innervation: Superior gluteal
Action: Abduction of thigh, medially rotates, flexes hip. Extends knee

Question 21

Extensor digitorum longus

Answer 21

Innervation: Deep Fibular
Action: Extends digits 2-5, dorsiflex

Question 22

Extensor hallucis longus

Answer 22

Innervation: Deep fibular
Action: Extends toe, dorsiflex angle

Question 23

Fibularis peroneus tertinus

Answer 23

Innervation: Deep fibular
Action: dorsiflex foot, eversion of foot

Question 24

Tibialis anterior

Answer 24

Innervation: Deep fibular
Action: dorsiflex, inversion

Question 25

Fibularis peroneus brevis

Answer 25

Innervation: Sup fibular Action: eversion, weak plantarflexion

Question 26

Fibularis peroneus longus

Answer 26

Innervation: Sup Fibular Action: eversion, plantar flexion

Question 27

Flexor digotorum longus

Answer 27

Innervation: Tibial nerve Action: Flex digits 2-5, plantarflex

Question 28

Flexor hallucis longus

Answer 28

Innervation: Tibial Action: Flexes toe, plantarflex

Question 29

Gastrocnemius

Answer 29

Innervation: Tibial nerve Action: plantarflex, flex knee, raise heel

Question 30

Plantaris

Answer 30

Innervation: Tibial Action: plantarflex, flex knee

Question 31

Popliteus

Answer 31

Innervation: Tibial Action: flex knee, unlocks it

Question 32

Soleus

Answer 32

Innervation: Tibial Action: plantarflex

Question 33

Tibialis posterior

Answer 33

Innervation: Tibial Action: Plantarflex, inverst foot

Question 34

Rectus femoris (quads)

Answer 34

Innervation: Femoral Action: Extend knee, flex thigh

Question 35

Vastus intermedius (quads)

Answer 35

Innervation: Femoral Action: Extend knee

Question 36

Vastus lateralis (quads)

Answer 36

Innervation: Femoral Action: Extend knee

Question 37

Vastus medialis (quads)

Answer 37

Innervation: Femoral Action: Extend knee

Question 38

Adductor brevis

Answer 38

Innervation: Obturator Action: adduct hip, flexes hip, medial rotation

Question 39

Adductor longus

Answer 39

Innervation: Obturator Action: adduct hip, flexes hip, medial rotation

Question 40

Adductor magnus

Answer 40

Innervation: Obturator + Sciatic (tibial) Action: adduct hip, extend/flexes hip, medial/lateral rotation

Question 41

Gracialis

Answer 41

Innervation: Obturator Action: adduct thigh. flexes and medially rotates leg

Question 42

Obturator externus

Answer 42

Innervation: Obturator Action: laterally rotates, stabilizes head of femur in acetebelum

Question 43

Pectineus

Answer 43

Innervation: Femoral and obturator Action: adduct, flexes hip, medial rotation

Question 44

Biceps femoris

Answer 44

Innervation: Short: Sciatic (common fibular) Long: Sciatic (Tibial) Action: Flexes and laterally rotates leg, extends thigh

Question 45

Semimembranosus

Answer 45

Innervation: Sciatic (tibial) Action: Extends thigh, flexes leg

Question 46

Semitredinosus

Answer 46

Innervation: Sciatic (tibial) Action: Extends thigh,, flexes leg

Question 47

Illiacus

Answer 47

Innervation: Femoral Action: Hip Flexion

Question 48

Psoas major

Answer 48

Innervation: Femoral Action: Hip Flexion, lateral rotation

Question 49

Sartorius

Answer 49

Innervation: Femoral Action: Abduct, laterally rotate, flex thigh. Flex knee

Question 50

Quadratus Femoris

Answer 50

Innervation: Nerve to quadratus femoris Action: Laterally rotates thigh

Question 51

Gluteus Medius

Answer 51

Innervation: Sup Gluteal nerve Action: Abducts and medially rotates hip