Muscles of the Leg and Foot

Question 1

Origin, Insertion, and Action for the Gastrocnemius

Answer 1

Origin: Condyles of femur
Insertion: Calcaneus by calcaneal tendon
Action: Flexes leg, plantar flexes foot

Question 2

Origin, Insertion, and Action for the Tibialis posterior

Answer 2

Origin: Proximal portion of tibia and fibula
Insertion: Second through fourth metatarsals and some tarsals
Action: Plantar flexes and inverts foot

Question 3

Origin, Insertion, and Action for the Flexor digitorum longus

Answer 3

Origin: Posterior tibia
Insertion: Distal phalanges of II-V digits
Action: Flexes toes, plantar flexes and inverts foot

Question 4

Origin, Insertion, and Action for the Tibials anterior

Answer 4

Origin: Lateral condyle and proximal tibia
Insertion: First metatarsal and medial cuneiform
Action: Dorsiflexes and inverts foot

Question 5

Origin, Insertion, and Action for the Extensor digitorum longus

Answer 5

Origin: Lateral condyle of tibia, shaft of fibula
Insertion: Middle and distal phalanges of II-V digits
Action: Extends toes, dorsiflexes foot

Question 6

Origin, Insertion, and Action for the Fibularis longus

Answer 6

Origin: Head and shaft of fibula, lateral condyle of tibia
Insertion: First metatarsal, medial cuneiform
Action: Plantar flexes and everts foot

Question 7

Name an action for the Soleus

Answer 7

Plantar flexes foot

Question 8

Name an action for the Plantaris

Answer 8

Flexes leg, plantar flexes foot

Question 9

Name an action for the Popliteus

Answer 9

Flexes leg

Question 10

Name an action for the Fibularis brevis

Answer 10

Plantar flexes and everts foot

Question 11

Name an action for the Fibularis tertius

Answer 11

Dorsiflexes and everts foot