Lower Leg Muscles Flashcards Preview

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Flashcards in Lower Leg Muscles Deck (24):
1

Tibialis Anterior Origin and Insertion

Origin-Lateral condyle of Tibia; Lateral surface of Tibia; Interosseous Membrane

Insertion- Medial Cuneiform and Base of 1st metatarsal

2

Tibialis Anterior Action

Invert the foot; Dorsiflex the ankle

3

Extensor Hallucis Longus Origin and Insertion

Origin- Middle, Anterior surface of Fibula and Interosseous Membrane

Insertion- Distal Phalanx of 1st toe

4

Extensor Hallucis Longus Action

Extend the first toe; Dorsiflex the ankle; Invert the foot

5

Extensor Digitorum Longus Origin and Insertion

Origin- Lateral condyle of Tibia; Proximal, anterior shaft of Fibula; Interosseous membrane

Insertion- Middle and distal phalanges of toes 2-5

6

Extensor Digitorum Longus Action

Extend the 2nd-5th toes; Dorsiflex the ankle; Evert the foot

7

Peroneus Longus Origin and Insertion

Origin- Head of Fibula and proximal lateral Fibula

Insertion- Medial cuneiform and base of 1st metatarsal

8

Peroneus Longus Action

Evert the foot; Assist to plantarflex the ankle

9

Peroneus Brevis origin and insertion

Origin- Distal lateral Fibula

Insertion- Tuberosity of 5th metatarsal

10

Peroneus Brevis Action

Evert the foot; Assist to Plantarflex the ankle

11

Gastrocnemius origin and insertion

Origin- condyles of Femur, posterior surface

Insertion- Calcaneus via Calneal tendon

12

Gastrocnemius Action

Flex the knee; Plantarflex the ankle

13

Soleus origin and insertion

Origin- Soleal line; Proximal, posterior surface of Tibia and posterior aspect of head of Fibula

Insertion- Calcaneus via calcaneal tendon

14

Soleus Action

Plantarflex the ankle

15

Plantaris origin and insertion

Origin- Lateral supracondylar line of Femur

Insertion- Calcaneus via calcaneal tendon

16

Plantaris Action

Weak Plantarflexion of ankle; Weak flexion of knee

17

Popliteus Origin and Insertion

Origin- Lateral condyle of Femur

Insertion- Proximal, posterior aspect of Tibia

18

Popliteus Action

Medially rotate the flexed knee; Flex the knee

19

Flexor Hallucis Longus origin and insertion

Origin- Middle half of posterior Fibula

Insertion- Distal phalanx of 1st toe

20

Flexor Hallucis Longus Action

Flex the first toe; Weak plantarflexion of ankle; Invert the foot

21

Flexor Digitorum Longus origin and insertion

Origin- Middle, posterior surface of Tibia

Insertion- Distal phalanges of 2nd-5th toes

22

Flexor Digitorum Longus Action

Flex the second through fifth toes; Weak plantarflexion of ankle; Invert the foot

23

Tibialis Posterior origin and insertion

Origin- Proximal posterior shafts of Tibia and Fibula; Interosseous Membrane

Insertion- All 5 tarsal bones; Bases of 2nd-4th metatarsals

24

Tibialis Posterior Action

Invert the foot; Plantarflex the ankle