Anterior and Lateral Leg Muscles Flashcards
Anterior compartment leg muscles
Fibularis teritus
Extensor digitorum longus
Extensor hallucis longus
Tibialis anterior
Lateral compartment leg muscles
Fibularis brevis
Fibularis longus
Fibularis Tertius
- Originates on distal fibula and interosseous membrane
- Inserts on the base of the 5th metatarsal;
- Dorsiflexes and everts the foot.
Extensor digitorum longus
- Originates on the lateral tibial condyle, the interosseous membrane, and, the proximal 2/3rds of the fibula
- Inserts on the bases of the middle and distal phalanges of digits 2-5
- Extends the toes and dorsiflexes and everts the foot.
Extensor hallucis longus
- Originates on the middle of the anterior fibula and interosseous membrane
- Inserts on the base of the distal phalanx of digit 1
- Extends the big toe and dorsiflexes and inverts the foot.
Tibilais anterior
- Originates on the lateral tibial condyle and the interosseous membrane
- Inserts on the first cuneiform and first metatarsal
- Dorsiflexes and inverts the foot.
Fibularis brevis
- Originates on the distal lateral fibula (and intermuscular septa)
- Inserts on the base of the fifth metatarsal
- Everts and plantar flexes the foot.
Fibularis longus
Originates on the lateral tibial condyle, head and proximal lateral fibula, and wraps under the foot
• Inserts on the base of the first metatarsal and medial cuneiform
• Everts and plantar flexes t
Hallucis acts on
Digit 1
Muscles that insert on the lateral side of the foot…
evert
Muscles that insert on the medial side of the foot…
invert
Anterior muscles …
Dorsiflex
Lateral muscles…
plantarflex