Lower Leg and Ankle Muscles Flashcards
Soleus - Origin
O= Tibia - Soleal line & Fibula - posterior proximal 1/3
Soleus - Insertion
I = Forms the achilles tendon and attaches on Calcaneus - posterior surface
Soleus - Actions
Ankle Planterflexion
Peroneus Longus - Origin
O= Fibula - Lateral Aspect of proximal 1/3
Peroneus Longus - Insertion
I= Medial Cuneiform and 1st Metatarsal
Peroneus Longus - Actions
Ankle Eversion
Assists with Planterflexion
Peroneus Brevis - Origin
O= Fibula - Middle 1/3 Lateral Surface
Peroneus Brevis - Insertion
I= 5th Metatarsal - lateral base
Peroneus Brevis - Actions
Ankle Eversion
Assists with Planterflexion
Peroneus Tertius - Origin
O= Fibula - Distal 1/3 & Interosseous membrane
Peroneus Tertius - Insertion
I= 5th Metatarsal - Dorsal surface
Peroneus Tertius - Actions
Ankle dorsiflexion
Assists ankle eversion
Tibialis Anterior - Origin
O= Tibia - Lateral condyle and lateral surface of proximal 1/2 & interosseous membrane
Tibialis Anterior - Insertion
I= Medial coneiform and base of 1st metatarsal bone
Tibialis Anterior - Actions
Ankle Dorsiflexion
Assists with ankle inversion