Lower Quarter Innervations

Front 1

peripheral innervation of psoas major

Back 1

anterior rami of lumbar spinal nerves L1, L2, and L3

Front 2

segmental innervation of psoas major

Back 2

(L1), L2, L3, (L4)

Front 3

peripheral innervation of iliacus

Back 3

femoral nerve

Front 4

segmental innervation of iliacus

Back 4

(L1), L2, L3, (L4)

Front 5

peripheral innervation of rectus femoris

Back 5

femoral nerve

Front 6

segmental innervation of rectus femoris

Back 6

L2, L3, L4

Front 7

peripheral innervation of vastus medialis

Back 7

femoral nerve

Front 8

segmental innervation of vastus medialis

Back 8

L2, L3, L4

Front 9

what division of what lumbar spinal nerves does the femoral nerve come from in the lumbar plexus?

Back 9

posterior division of L2, L3, L4

Front 10

peripheral innervation of vastus lateralis

Back 10

femoral nerve

Front 11

segmental innervation of vastus lateralis

Back 11

L2, L3, L4

Front 12

peripheral innervation of vastus intermedius

Back 12

femoral nerve

Front 13

segmental innervation of vastus intermedius

Back 13

L2, L3, L4

Front 14

peripheral innervation of sartorius

Back 14

femoral nerve

Front 15

segmental innervation of sartorius

Back 15

L2, L3, (L4)

Front 16

peripheral innervations of pectineus

Back 16

femoral nerve
accessory obturator nerve

Front 17

segmental innervation of pectineus

Back 17

L2, L3, (L4)

Front 18

what division of what roots of the lumbar plexus does the accessory obturator nerve come from?

Back 18

anterior divisions of L3 and L4

Front 19

peripheral innervations of adductor magnus

Back 19

obturator nerve
tibial division of sciatic nerve

Front 20

segmental innervations of adductor magnus

Back 20

(L2), L3, L4
L4, (L5), (S1)

Front 21

what division of what roots of the lumbar plexus does the obturator nerve come from?

Back 21

anterior division of L2, L3, and L4

Front 22

peripheral innervation of adductor longus

Back 22

obturator nerve

Front 23

segmental innervation of adductor longus

Back 23

L2, L3, (L4)

Front 24

peripheral innervation of adductor brevis

Back 24

obturator nerve

Front 25

segmental innervation of adductor brevis

Back 25

L2, L3, L4

Front 26

peripheral innervation of gracilis

Back 26

obturator nerve

Front 27

segmental innervation of gracilis

Back 27

L2, L3, L4

Front 28

peripheral innervation of obturator externus

Back 28

obturator nerve

Front 29

segmental innervation of obturator externus

Back 29

L3, L4

Front 30

peripheral innervation of tensor fascia lata

Back 30

superior gluteal nerve

Front 31

segmental innervation of tensor fascia lata

Back 31

L4, L5, S1

Front 32

peripheral innervation of gluteus medius

Back 32

superior gluteal nerve

Front 33

segmental innervation of gluteus medius

Back 33

L4, L5, S1

Front 34

peripheral innervation of gluteus minimus

Back 34

superior gluteal nerve

Front 35

segmental innervation of gluteus minimus

Back 35

L4, L5, S1

Front 36

what division of what roots does the superior gluteal nerve come from in the sacral plexus?.

Back 36

posterior divisions of L4, L5, and S1

Front 37

peripheral innervation of gluteus maximus

Back 37

inferior gluteal nerve

Front 38

segmental innervation of gluteus maximus

Back 38

L5, S1, S2

Front 39

what division of what roots does the inferior gluteal nerve come from in the sacral plexus?

Back 39

posterior divisions of L5, S1, and S2

Front 40

peripheral innervation of piriformis

Back 40

nerve to the piriformis

Front 41

segmental innervation of the piriformis

Back 41

(L5), S1, S2

Front 42

what division of what roots does the nerve to the piriformis come from in the sacral plexus?

Back 42

posterior division of (L5), S1, and S2

Front 43

peripheral innervation of obturator internus

Back 43

nerve to obturator internus and superior gemellus

Front 44

segmental innervation of obturator internus

Back 44

L5, S1, S2

Front 45

peripheral innervation of superior gemellus

Back 45

nerve to obturator internus and superior gemellus

Front 46

segmental innervation of superior gemellus

Back 46

L5, S1, S2

Front 47

what division of what root does the nerve to the obturator internus and superior gemellus come from in the sacral plexus?

Back 47

anterior division of L5, S1, and S2

Front 48

peripheral innervation of inferior gemellus

Back 48

nerve to quadratus femoris and inferior gemellus

Front 49

segmental innervation of inferior gemellus

Back 49

L4, L5, S1, (S2)

Front 50

peripheral innervation of quadratus femoris

Back 50

nerve to quadratus femoris and inferior gemellus

Front 51

segmental innervation of quadratus femoris

Back 51

L4, L5, S1, (S2)

Front 52

what division of what roots does the nerve to quadratus femoris and inferior gemellus come from in the sacral plexus?

Back 52

anterior division of L4, L5, S1, (S2)

Front 53

peripheral innervation of popliteus

Back 53

tibial nerve

Front 54

segmental innervation of popliteus

Back 54

(L4), L5, S1

Front 55

peripheral innervation of tibialis posterior

Back 55

tibial nerve

Front 56

segmental innervation of tibialis posterior

Back 56

(L4), L5, S1

Front 57

peripheral innervation of plantaris

Back 57

tibial nerve

Front 58

peripheral innervation of semimembranosus

Back 58

tibial nerve

Front 59

peripheral innervation of semitendinosus

Back 59

tibial nerve

Front 60

peripheral innervation of flexor hallucis longus

Back 60

tibial nerve

Front 61

peripheral innervation of flexor digitorum longus

Back 61

tibial nerve

Front 62

peripheral innervation of soleus

Back 62

tibial nerve

Front 63

peripheral innervation of biceps femoris long head

Back 63

tibial nerve

Front 64

peripheral innervation of gastrocnemius (medial and lateral heads)

Back 64

tibial nerve

Front 65

segmental innervation of plantaris

Back 65

(L4), L5, S1, (S2)

Front 66

segmental innervation of semimembranosus

Back 66

(L4), L5, S1, (S2)

Front 67

segmental innervation of semitendinosus

Back 67

(L4), L5, S1, S2

Front 68

segmental innervation of flexor hallucis longus

Back 68

L5, S1, S2

Front 69

segmental innervation of flexor digitorum longus

Back 69

L5, S1, (S2)

Front 70

segmental innervation of soleus

Back 70

(L5), S1, S2

Front 71

segmental innervation of biceps femoris long head

Back 71

(L5), S1, S2, (S3)

Front 72

segmental innervation of gastrocnemius (medial and lateral heads)

Back 72

S1, S2

Front 73

what division of what roots of the sacral plexus does the tibial nerve come from?

Back 73

anterior division of L4, L5, S1, S2, and S3

Front 74

what division of what roots of the sacral plexus does the common fibular nerve come from?

Back 74

posterior division of L4, L5, S1, S2

Front 75

peripheral innervation of biceps femoris short head

Back 75

common fibular nerve

Front 76

segmental innervation of biceps femoris short head

Back 76

L5, S1, S2

Front 77

peripheral innervation of extensor hallucis longus

Back 77

deep fibular nerve

Front 78

peripheral innervation of extensor hallucis brevis

Back 78

deep fibular nerve

Front 79

peripheral innervation of extensor digitorum brevis

Back 79

deep fibular nerve

Front 80

peripheral innervation of extensor digitorum longus

Back 80

deep fibular nerve

Front 81

peripheral innervation of fibularis tertius

Back 81

deep fibular nerve

Front 82

peripheral innervation of tibialis anterior

Back 82

deep fibular nerve

Front 83

segmental innervation of extensor hallucis longus

Back 83

(L4), L5, S1

Front 84

segmental innervation of extensor hallucis brevis

Back 84

(L4), L5, S1

Front 85

segmental innervation of extensor digitorum brevis

Back 85

(L4), L5, S1

Front 86

segmental innervation of extensor digitorum longus

Back 86

L4, L5, S1

Front 87

segmental innervation of fibularis tertius

Back 87

L4, L5, S1

Front 88

segmental innervation of tibialis anterior

Back 88

L4, L5, (S1)

Front 89

peripheral innervation of fibularis longus

Back 89

superficial fibular nerve

Front 90

peripheral innervation of fibularis brevis

Back 90

superficial fibular nerve

Front 91

segmental innervation of fibularis longus

Back 91

(L4), L5, S1

Front 92

segmental innervation of fibularis brevis

Back 92

(L4), L5, S1

Front 93

peripheral innervation of abductor hallucis

Back 93

medial plantar nerve

Front 94

peripheral innervation of flexor hallucis brevis

Back 94

medial plantar nerve

Front 95

peripheral innervation of flexor digitorum brevis

Back 95

medial plantar nerve

Front 96

peripheral innervation of first lumbricale

Back 96

medial plantar nerve

Front 97

peripheral innervation of lumbricales 2-4

Back 97

lateral plantar nerve

Front 98

peripheral innervation of flexor digiti minimi brevis

Back 98

lateral plantar nerve

Front 99

peripheral innervation of abductor digiti minimi

Back 99

lateral plantar nerve

Front 100

peripheral innervation of adductor hallucis

Back 100

lateral plantar nerve

Front 101

peripheral innervation of interossei

Back 101

lateral plantar nerve

Front 102

peripheral innervation of quadratus plantae

Back 102

lateral plantar nerve

Front 103

segmental innervation of abductor hallucis

Back 103

(L4), L5, S1

Front 104

segmental innervation of flexor hallucis brevis

Back 104

(L4), L5, S1

Front 105

segmental innervation of flexor digitorum brevis

Back 105

(L4), L5, S1

Front 106

segmental innervation of first lumbricale

Back 106

(L4), L5, S1

Front 107

segmental innervation of lumbricales 2-4

Back 107

(L4), (L5), S1, S2

Front 108

segmental innervation of flexor digiti minimi brevis

Back 108

L4, L5, S1, S2, S3

Front 109

segmental innervation of abductor digiti minimi

Back 109

S1, S2

Front 110

segmental innervation of adductor hallucis

Back 110

S1, S2

Front 111

segmental innervation of interossei

Back 111

S1, S2

Front 112

segmental innervation of quadratus plantae

Back 112

S1, S2