Lower Leg Flashcards
Tibialis anterior
- Tibia
- Interosseous membrane
- Medial cuneiform
- Base of 1st metatarsal
- DF/inversion
- Deep fibular n. [L4,L5]
Extensor digitorum longus
- Fibula
- lateral tibial condyle
- Via dorsal digital expansions into toes 2-5 DF
- Extension of toes
- Deep fibular n. [L5,S1]
Extensor hallucis longus
- Fibula
- Interosseous membrane
-Distal phalanx of great toe
- DF
- Extension of hallux
-Deep fibular n. [L5,S1]
Fibularis (peroneus) tertius
- Distal part of fibula
- Base of 5th metatarsal
- DF
- Eversion
-Deep fibular n. [L5,S1]
Fibularis
(peroneus) longus
- Upper surface of fibula
- Medial cuneiform
- Base of 1st metatarsal
- Eversion
- Plantarflexion
-Superficial fibular n. [L5,S1,S2]
Fibularis
(peroneus) brevis
- Lower surface of fibula
- Base of 5th metatarsal
- Eversion
- Plantarflexion
-Superficial fibular n. [L5,S1,S2]
Gastrocnemius
Medial head:
-superior to medial femoral condyle
Lateral head:
-superior to lateral femoral condyle
-Via calcaneal tendon, to posterior surface of calcaneus
- Knee flexion
- plantarflexion
-Tibial n. [S1,S2]
Plantaris
- Superior to lateral femoral condyle
- Via calcaneal tendon, to posterior surface of calcaneus
- Knee flexion
- PF
-Tibial n. [S1,S2]
Soleus
- Posterior aspect of tibia
- posterior aspect of fibular head/shaft
- Via calcaneal tendon, to posterior surface of calcaneus
- PF
- Tibial n. [S1,S2]
Popliteus
- Posterior surface of proximal tibia
- Lateral femoral condyle
- Unlocks extended knee joint (ER of femur on fixed tibia)
- Tibial n. [L4 to S1]
Flexor hallucis longus
- Posterior surface of fibula
- interosseous membrane
- Distal phalanx of hallux
- Flexes great toe
- Tibial n. [S2, S3]
Flexor digitorum longus
- Tibia
- DPs 2-5
- Flexes toes 2-5
- PF
-Tibial n. [S2, S3]
Tibialis posterior
- Fibula
- Interosseous membrane
- Tibia
- Metatarsals 2-4
- All cuneiform bones
- Navicular
- PF
- Inversion
-Tibial n. [L4,L5]
Abductor Hallicus
- Calcaneus
- Base of 1st PP (medial side)
- Abduction and flexion of hallux
- MPN
Flexor digitorum brevis
- Calcaneus
- MPs 2-5 (Both sides)
- Flexes digits 2-5
- MPN
Abductor Digiti Minim
- Calcaneus
- Base of 5th PP (lateral side)
- Flexion/ Abd of 5th digit
- Superficial branch of LPN (Tibial nerve)
Quadratus plantae
- Calcaneus
- Posterolateral margin of tendon of FDL
- Assists FDL in flexing digits 2-5
- LPN
Lumbricals
- Tendons of FDL
- Medial aspect of PPs 2-5
- Flexion of PP 2-5
- Extension of MPs/DPs
- 1st: MPN
- 2nd-4th: LPN
Flexor hallucis brevis
-Plantar aspect of cuboid and lateral cuneiform
- Tibialis posterior tendon
- Base of PP of hallux (Both sides)
- Flexion of PP of hallux
- MPN
Adductor hallucis
- Oblique head: base of MTs 2-4
- Transverse head: MTP joints
- Base of PP of hallux (lateral side)
- Adduction of hallux
- Deep branch of LPN
Flexor digiti minimi brevis
- Base of 5th MT
- Base of 5th PP
- Flexion of 5th PP
- Superficial branch of LPN (Tibial nerve)
Plantar interossei
- Bases and medial sides of metatarsals 3-5
- Medial sides of bases of PPs 3-5
- Adduction of digits 3-5
- Flexion of MTP joints
-Lateral plantar nerve (Tibial nerve)
Dorsal interossei
-Adjacent sides of MTs 1-5
- Medial side of 2nd PP
- Lateral sides of PP 2-4
- Abduction of digits 2-4
- Flexion of MTP joints
-LPN
Extensor digitorum brevis
- Lateral calcaneus
- Dorsal surface of toes 2-4
- Extension of toes 2-4
- Deep fibular n. [S1, S2]
Extensor hallucis brevis
- Lateral calcaneus
- Dorsal surface of 1st PP
- Extension of hallux
- Deep fibular n. [S1, S2]
