Muscles - Leg & Foot

Question 1

Popliteus Origin

Answer 1

Lateral condyle of the femur

Question 2

Popliteus Insertion

Answer 2

Proximal, posterior aspect of the tibia

Question 3

Popliteus Actions

Answer 3

Medial rotation of the flexed knee at the tibiofemoral jt

Flexion of the knee at the tibiofemoral jt

Question 4

Popliteus Innervation

Answer 4

Tibial L4, L5, S1

Question 5

Plantaris Origin

Answer 5

Lateral supracondylar line of femur

Question 6

Plantaris Insertion

Answer 6

Calcaneus via calcaneal tendon

Question 7

Plantaris Actions

Answer 7

Weak plantar flexion of the ankle at talocrual jt

Weak flexion of the knee at tibiofemoral jt

Question 8

Plantaris Innervation

Answer 8

Tibial L4, L5, S1

Question 9

Fibularis Longus Origin

Answer 9

Head of the fibula and proximal 2/3 of lateral fibula

Question 10

Fibularis Longus Insertion

Answer 10

Base of the 1st metatarsal and medial cuneiform

Question 11

Fibularis Longus Actions

Answer 11

Evert the foot at subtalar jt

Assist plantar flexion of the ankle at talocrual jt

Question 12

Fibularis Longus Innervation

Answer 12

Superficial fibular L4, L5 S1

Question 13

Fibularis Brevis Origin

Answer 13

Distal 2/3 of lateral fibula

Question 14

Fibularis Brevis Insertion

Answer 14

Tuberosity of 5th metatarsal

Question 15

Fibularis Brevis Actions

Answer 15

Evert the foot at subtalar jt

Assist plantar flextion of the ankle at talocrual jt

Question 16

Fibularis Brevis Innervation

Answer 16

Superficial fibular L4, L5, S1

Question 17

Gastrocnemius Origin

Answer 17

Posterior surfaces of the condyles of the femur

Question 18

Gastrocnemius Insertion

Answer 18

Calcaneus via calcaneal tendon

Question 19

Gastrocnemius Actions

Answer 19

Flex knee at tibiofemoral jt

Plantar flexion of the ankle at the talocrual jt

Question 20

Gastrocnemius Innervation

Answer 20

Tibial S1, S2

Question 21

Soleus Origin

Answer 21

Soleal line, proximal posterior surface of the tibia, posterior aspect of the head of fibula

Question 22

Soleus Insertion

Answer 22

Calcaneus via calcaneal tendon

Question 23

Soleus Actions

Answer 23

Plantar flexion of the ankle at the talocrual jt

Question 24

Soleus Innervation

Answer 24

Tibial L5, S1, S2

Question 25

Extensor Digitorum Longus Origin

Answer 25

Lateral condyle of tibia, proximal anterior shaft of fibula and interosseous membrane

Question 26

Extensor Digitorum Longus Insertion

Answer 26

Middle and distal phalanges of 2nd - 5th toes

Question 27

Extensor Digitorum Longus Actions

Answer 27

Extension of toes 2-5 at metatarsophalangeal and interphalangeal jt Dorsiflexion of the ankle at talocrual jt Evert the foot at subtalar jt

Question 28

Extensor Digitorum Longus Innervation

Answer 28

Deep fibular L4, L5, S1

Question 29

Tibialis Anterior Origin

Answer 29

Lateral condyle of the tibia, proximal lateral surface of tibia and interosseous membrane

Question 30

Tibialis Anterior Insertion

Answer 30

Base of the 1st metatarsal and medial cuneiform

Question 31

Tibialis Anterior Actions

Answer 31

Invert the foot at subtalar jt Dorsiflexion of the ankle at talocrual jt

Question 32

Tibialis Anterior Innervation

Answer 32

Deep fibular L4, L5, S1

Question 33

Tibialis Posterior Origin

Answer 33

Proximal, posterior shafts of tibia and fibula and interosseous membrane

Question 34

Tibialis Posterior Insertion

Answer 34

All 5 tarsal bones and bases of metatarsals 2-4

Question 35

Tibialis Posterior Actions

Answer 35

Invert the foot at subtalar jt Plantar flexion of the ankle at talocrual jt

Question 36

Tibialis Posterior Innervation

Answer 36

Tibial L4, L5, S1

Question 37

Flexor Digitorum Longus Origin

Answer 37

Middle, posterior surface of tibia

Question 38

Flexor Digitorum Longus Insertion

Answer 38

Distal phalanges of toes 2-5

Question 39

Flexor Digitorum Longus Actions

Answer 39

Flex toes 2-5 at metatarsophalangeal and interphalangeal jt Weak plantar flexion or ankle at talocrual jt Invert foot at subtalar jt

Question 40

Flexor Digitorum Longus Innervation

Answer 40

Tibial L5, S1, S2

Question 41

Flexor Hallucis Longus Origin

Answer 41

Middle half of posterior fibula

Question 42

Flexor Hallucis Longus Insertion

Answer 42

Distal phalanx of 1st toe

Question 43

Flexor Hallucis Longus Actions

Answer 43

Flex 1st toe at metatarsophalangeal and interphalangeal jt Weak plantar flexion of ankle at talocrual jt Invert foot at subtalar jt

Question 44

Flexor Hallucis Longus Innervation

Answer 44

Tibial L5, S1, S2