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7 Cards in this Set
- Front
- Back
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Describe the origin and insertion of the tibialis anterior muscle
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Origin-Lateral condyle and upper 2/3rds of the lateral surface of the tibia. The interosseous membrane and the deep crural fascia
Insertion- Medial plantar surface of the medial cuneiform and base of the 1st met. |
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What nerve innervates the tibialis anterior?
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The Deep fibular (peroneal) nerve
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What are the functions of the tibialis anterior?
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Dorsiflex and invert at the ankle. Also a suppinator (adduction and inversion) at intertarsal joints
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Describe the anotomical position of the EHL
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Just lateral to Tibialis Anterior. The anterior tibial vessels and deep peroneal nerve lie between it and the tibialis anterior.
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Describe the origin and insertion of the EHL
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Origin: Middle 2/3rds of the anterior surface of the fibula, medial to origin of EDL.
Insertion: The base of the distal phalanx of the 1st digit and an additional slilp into the base of the 1st met. |
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What nerve innervates the EHL?
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Deep fibular (peroneal) nerve
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What are the functions of the EHL?
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Extension at 1st MPJ and dorsiflexion at the ankle joint and supination at the intertarsal joints.
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