| Question |
Answer |
| What is the origin of the Tibialis Anterior Muscle? |
Lateral condyle, proximal half of the shaft of the tibia, and adjacent interosseous membrane. |
| What is the origin of the Extensor digitorum longus muscle? |
Lateral condyle of the tibia,proximal 3/4 ths of the medial surface of the fibula, and adjacent interosseous membrane. |
| What is the origin of the extensor hallucis longus? |
Medial surface of the middle portion of the fibula and the adjacent interosseous membrane. |
| What is the origin of the Fibularis (Peroneus) tertius? |
Medial surface of the distal third of the fibula and adjacent interosseous membrane. (fibers blend with the extensor digitorum longus) |
| What is the insertion of the Tibialis anterior? |
Medial and inferior surfaces of the medial cuneiform and the base of the first metatarsal bone. |
| What is the insertion of the Extensor digitorum longus muscle? |
Middle phalanx and distal phalanx of the four lesser toes via the extensor expansion. |
| What is the insertion of the Extensor hallucis longus? |
Dorsal side of the base of the distal phalanx of the large toe with tendinous expansions to the base of the proximal phalanx on either side. |
| What is the insertion of the Fibularis (Peroneus) tertius? |
Medial side of the dorsal surface of the base of 5th metatarsal and down onto the shaft of this bone. |
| What is the Function of the Tibialis anterior? |
Dorsal flexion of the ankle joint (tibiotalar); inversion of the foot. |
| What is the function of the Extensor digitorum longus muscle? |
Dorsal flexion of the ankle joint; extension of the four small toes. |
| What is the function of the Extensor hallucis longus? |
Dorsal flexion of ankle; extension fo the big toe. |
| What is the function of the Fibularis (Peroneus) tertius? |
Dorsal flexion of the ankle joint; eversion of the foot. |
| What is the origin of the Fibularis (Peroneus) longus? |
Lateral suface of head and proximal 2/3rds of the fibula |
| What is the Origin of the Fibularis (Peroneus) brevis? |
Lateral surface of the distal 2/3rds of the shaft of the fibula; anterior and posterior crural intermuscular septa. |
| What is the insertion of the Fibularis (Peroneus) Longus? |
Lateral side of the base of the first metatarsal bone, lateral side of the base of the medial cuneiform. and the inferior base of the second metatarsal bone. |
| What is the insertion of the Fibularis (Peroneus) brevis? |
Tubercle on the lateral base of the 5th metatarsal bone. |
| What is the function of the Fibularis (Peroneus) longus? |
Plantar flexion of the ankle joint; eversion of the foot; helps maintain the longitudinal and transverse arches of the foot. |
| What is the function of the fibularis (Peroneus) brevis? |
Weak plantar flexor of the ankle joint; eversion of the foot. |
HHS Shrek
