Muscles

Question 1

Origin of gastrocnemius

Answer 1

Condyles of the femur, posterior surfaces.

Question 2

Origin of the soleus

Answer 2

Proximal, posterior surface of the tibia, posterior aspect of the head of the fibula.

Question 3

Origin of fibularis longus

Answer 3

Head of the fibula, proximal 2/3s of the lateral fibula.

Question 4

Origin of tibialis anterior

Answer 4

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

Question 5

Origin of extensor digitorum longus

Answer 5

Lateral condyle of the tibia, proximal anterior shaft of the fibula, interosseous membrane.

Question 6

Insertion of gastrocnemius

Answer 6

Posterior calcaneus via the calcaneal tendon.

Question 7

Insertion of soleus

Answer 7

Posterior calcaneus via the calcaneal tendon

Question 8

Insertion of the fibularis longus

Answer 8

Base of the first metatarsal and the medial cuneiform

Question 9

Insertion of the tibialis anterior

Answer 9

Medial cuneiform and the base of the first metatarsal

Question 10

Insertion of the extensor digitorum longus

Answer 10

Middle and distal phalanges of the second through fifth toes.

Question 11

Actions of gastrocnemius

Answer 11

Flexes the tibiofemoral joint and plantarflexes the talocrural joint.

Question 12

Actions of Soleus

Answer 12

Plantarflexes the talocrural joint.

Question 13

Actions of fibularis longus

Answer 13

Everts the subtalar joint and assists in plantarflexion of the talocrural joint.

Question 14

Actions of tibialis anterior

Answer 14

Inverts the subtalar joint and dorsiflexes the talocrural joint.

Question 15

Actions of extensor digitorum longus

Answer 15

Extends the second through fifth toes, dorsiflexes the talocrural joint and everts the subtalar joint.

Question 16

Palpation key of gastrocnemius

Answer 16

Client is prone with feet overhanging. Resist plantarflexion.

Question 17

Palpation key of soleus

Answer 17

Client is prone with the knee at 90 degrees. Resist plantarflexion.

Question 18

Palpation key of fibularis longus

Answer 18

Client is side-lying. Resist eversion of the foot.

Question 19

Palpation key of tibialis anterior

Answer 19

Client is supine. Resist dorsiflexion and inversion of the foot.

Question 20

Palpation key of extensor digitorum longus

Answer 20

Resist extension of the second through fifth toes.

Question 21

Soleus innervation

Answer 21

Tibial nerve

Question 22

Gastrocnemius innervation

Answer 22

Tibial nerve

Question 23

Extensor digitorum longus innervation

Answer 23

Deep fibular nerve

Question 24

Fibularis longus innervations

Answer 24

Superficial fibular nerve

Question 25

Tibialis anterior innervation

Answer 25

Deep fibular nerve