Podcast
Questions and Answers
Which muscle is responsible for extending the big toe?
Which muscle is responsible for extending the big toe?
What is the nerve supply for all the muscles in the anterior fascial compartment of the leg?
What is the nerve supply for all the muscles in the anterior fascial compartment of the leg?
Which action is performed by the tibialis anterior muscle?
Which action is performed by the tibialis anterior muscle?
Where does the fibularis tertius muscle insert?
Where does the fibularis tertius muscle insert?
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What is the primary action of the extensor digitorum longus muscle?
What is the primary action of the extensor digitorum longus muscle?
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Which muscle originates from the lateral surface of the shaft of the tibia?
Which muscle originates from the lateral surface of the shaft of the tibia?
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Which of the following muscles primarily contributes to dorsiflexion of the foot?
Which of the following muscles primarily contributes to dorsiflexion of the foot?
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Which of the following muscle actions is associated with the extensor hallucis longus?
Which of the following muscle actions is associated with the extensor hallucis longus?
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What is the nerve root for the extensor digitorum longus muscle?
What is the nerve root for the extensor digitorum longus muscle?
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Which statement about the action of the fibularis tertius is correct?
Which statement about the action of the fibularis tertius is correct?
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Study Notes
Muscles of Anterior Fascial Compartment of Leg
- Origin: Lateral surface of tibia and interosseous membrane
- Insertion: Medial cuneiform and base of first metatarsal bone
- Nerve: Deep fibular nerve
- Root: L4,5
- Action: Extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints; holds up medial longitudinal arch of foot
Muscles of Anterior Fascial Compartment of Leg Continued
- Origin: Anterior surface of shaft of fibula
- Insertion: Base of fifth metatarsal bone
- Nerve: Deep fibular nerve
- Root: L5; S1
- Action: Extends foot at ankle joint; everts foot
Muscles of Anterior Fascial Compartment of Leg Continued
- Origin: Anterior surface of shaft of fibula
- Insertion: Base of distal phalanx of great toe
- Nerve: Deep fibular nerve
- Root: L5; S1
- Action: Extends toes; extends foot at ankle joint; everts foot at subtalar and transverse tarsal joints
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Description
This quiz covers the muscles of the anterior fascial compartment of the leg, focusing on their origins, insertions, nerve supply, and actions. Knowledge of these muscles is essential for understanding lower limb mechanics and functions. Test your understanding of this critical aspect of human anatomy.
