Ankle and Foot Joint Kinesiology

Front

O: Medial and lateral condyles of femur
I: Posterior calcaneus
A: Knee flexion and ankle plantar flexion
Options: Soleus, Plantaris, Gastrocnemius, Tibialis Posterior

Back

Gastrocnemius

Front

O: Posterior tibia and fibula
I: Posterior calcaneus
A: Ankle plantar flexion
Which muscle is involved?

Back

Soleus

Front

O: Posterior lateral condyle of femur
I: Posterior calcaneus
A: Very weak assist in knee flexion and ankle plantar flexion

Back

Plantaris

Front

O: Interosseous membrane, adjacent tibia and fibula
I: Navicular and most tarsals and metatarsals
A: Ankle inversion; assists in plantar flexion

Back

Tibialis Posterior

Front

What muscle flexes the four lesser toes, assists in ankle inversion, and plantar flexion of the ankle? Options: Flexor Hallucis Longus, Flexor Digitorum Longus, Tibialis Anterior, Extensor Hallucis Longus

Back

Flexor Digitorum Longus

Front

O: Lateral tibia and interosseous membrane
I: First cuneiform and first metatarsal
A: Ankle inversion and dorsiflexion

Back

Tibialis Anterior

Front

O: Fibula and interosseous membrane
I: Distal phalanx of great toe
A: Extends first toe IP and MTP joints; assists in ankle inversion and dorsiflexion

Back

Extensor Hallucis Longus

Front

What muscle has the following characteristics?
O: Posterior fibula and interosseous membrane
I: Distal phalanx of the great toe
A: Flexes great toe; assists in inversion and plantar flexion of the ankle

Back

Flexor Hallucis Longus

Front

O: Lateral proximal fibula and interosseous membrane
I: Plantar surface of first cuneiform and metatarsal
A: Ankle eversion; assists in ankle plantar flexion

Back

Peroneus Longus

Front

O: Lateral distal fibula
I: Tuberosity on base of fifth metatarsal
A: Ankle eversion; assists in plantar flexion

Back

Peroneus Brevis