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Questions and Answers
Which of the following best describes the ankle joint?
Which of the following best describes the ankle joint?
What are the major movements of the ankle joint?
What are the major movements of the ankle joint?
Which plane of motion has the least amount of motion in the ankle joint?
Which plane of motion has the least amount of motion in the ankle joint?
Which of the following is true about the stability of the ankle joint?
Which of the following is true about the stability of the ankle joint?
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Which bone forms the palpable heel and is not part of the ankle joint?
Which bone forms the palpable heel and is not part of the ankle joint?
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What are the three articular surfaces involved in the ankle joint?
What are the three articular surfaces involved in the ankle joint?
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Which part of the talus is wider anteriorly and has three articular surfaces involved in the ankle joint?
Which part of the talus is wider anteriorly and has three articular surfaces involved in the ankle joint?
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In which position is the ankle joint most stable?
In which position is the ankle joint most stable?
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Which plane is associated with dorsiflexion and plantarflexion of the foot?
Which plane is associated with dorsiflexion and plantarflexion of the foot?
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Which ligament attaches to the distal tip of the medial malleolus?
Which ligament attaches to the distal tip of the medial malleolus?
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Which ligament is part of the lateral collateral ligament (LCL) of the ankle joint and attaches to the inferior portion of the lateral malleolus?
Which ligament is part of the lateral collateral ligament (LCL) of the ankle joint and attaches to the inferior portion of the lateral malleolus?
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Which bone has a comma-shaped articular facet for the talus on its lateral surface?
Which bone has a comma-shaped articular facet for the talus on its lateral surface?
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Which ligament is most prone to injury when the ankle is dorsiflexed?
Which ligament is most prone to injury when the ankle is dorsiflexed?
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Which ligament is the weakest of the superficial bands in the deltoid ligament?
Which ligament is the weakest of the superficial bands in the deltoid ligament?
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Which ligament attaches to the neck of the talus and may be absent in some cases?
Which ligament attaches to the neck of the talus and may be absent in some cases?
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Which ligament is primarily responsible for resisting eversion sprains of the ankle?
Which ligament is primarily responsible for resisting eversion sprains of the ankle?
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Which plane of motion is primarily associated with dorsiflexion and plantarflexion of the ankle joint?
Which plane of motion is primarily associated with dorsiflexion and plantarflexion of the ankle joint?
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Which ligament is more vulnerable to stretch and tear in inversion during plantarflexion of the ankle joint?
Which ligament is more vulnerable to stretch and tear in inversion during plantarflexion of the ankle joint?
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Which nerve is commonly found in the posterior compartment of the leg?
Which nerve is commonly found in the posterior compartment of the leg?
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Which artery becomes the dorsalis pedis artery distal to the ankle?
Which artery becomes the dorsalis pedis artery distal to the ankle?
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Which ligament attaches to the lateral calcaneus and is superior to the peroneal tubercle?
Which ligament attaches to the lateral calcaneus and is superior to the peroneal tubercle?
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Which ligament of the ankle joint is the strongest and most extensive?
Which ligament of the ankle joint is the strongest and most extensive?
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Which ligament of the ankle joint attaches to the talar neck?
Which ligament of the ankle joint attaches to the talar neck?
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Which ligament of the ankle joint attaches to the lateral tubercle of the posterior process of the talus?
Which ligament of the ankle joint attaches to the lateral tubercle of the posterior process of the talus?
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Which ligament connects the posterior colliculus of the medial malleolus to the medial tubercle of the posterior talus?
Which ligament connects the posterior colliculus of the medial malleolus to the medial tubercle of the posterior talus?
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Which ligament runs from the side of the calcaneus to the lateral malleolus?
Which ligament runs from the side of the calcaneus to the lateral malleolus?
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Which ligament can be seen running from the lateral malleolar fossa to the lateral tubercle of the posterior talus?
Which ligament can be seen running from the lateral malleolar fossa to the lateral tubercle of the posterior talus?
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Which ligament is not in view in the image because of its more posterior position?
Which ligament is not in view in the image because of its more posterior position?
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Which ligament connects the posterior colliculus of the medial malleolus to the sustentaculum tali?
Which ligament connects the posterior colliculus of the medial malleolus to the sustentaculum tali?
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Which of the following statements is true about the lateral collateral ligaments of the ankle?
Which of the following statements is true about the lateral collateral ligaments of the ankle?
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Study Notes
Ankle Joint Overview
- The ankle joint is a complex structure enabling movement and stability in the foot.
- Major movements include dorsiflexion (lifting the foot) and plantarflexion (pointing the foot).
Motion and Stability
- The sagittal plane is associated with significant ankle movement, particularly for dorsiflexion and plantarflexion.
- The ankle joint is most stable in a neutral or slightly dorsiflexed position.
- The stability is enhanced by various ligaments, with certain ligaments more prone to injury based on foot position.
Bones and Articular Surfaces
- The calcaneus (heel bone) forms the palpable heel and is not part of the ankle joint.
- The ankle joint has three main articular surfaces: the tibia, fibula, and talus.
- The talus is wider anteriorly, contributing to ankle stability.
Ligaments
- The deltoid ligament provides medial support and is comprised of several bands; the weakest is part of its superficial layer.
- The lateral collateral ligaments (LCL) include:
- The anterior talofibular ligament (ATFL), vulnerable during inversion injuries.
- The calcaneofibular ligament (CFL), which attaches to the lateral malleolus.
- The talocalcaneal ligament supports the joint between the talus and calcaneus.
- The tibionavicular ligament is associated with the neck of the talus and may be absent in some individuals.
Neurovascular Components
- The common peroneal nerve runs in the posterior compartment of the leg.
- The anterior tibial artery transitions to the dorsalis pedis artery as it passes distal to the ankle.
Additional Ligament Functions
- The posterior talofibular ligament (PTFL) is the strongest and most extensive ligament in the ankle joint, providing lateral stability.
- The ligament attaching from the calcaneus to the lateral malleolus supports lateral structures of the ankle.
- The ligament connecting the medial malleolus to the sustentaculum tali reinforces the medial aspect of the joint.
Summary of Key Points
- Ankle joint stability is largely determined by its ligaments; inversion sprains commonly injure specific lateral ligaments.
- Dorsiflexion and plantarflexion are primary movements associated with the sagittal plane.
- Certain ligaments and nerves play crucial roles in both mobility and stability of the ankle.
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Description
Test your knowledge on the movements at the ankle joint with this quiz. Learn about the triplane axis and the small amount of motion in the transverse and coronal planes. Discover how the fibula moves during dorsiflexion and its impact on the ankle mortise. Challenge yourself and enhance your understanding of the ankle joint axis of motion.
