Ankle and Foot Flashcards
Bones of the feet diagram
Side view of bones of the feet
What is the largest tarsal bone that supports everything?
Calcaneus
What is the weight bearing portion of the foot?
Calcaneal tuberosity
Where does the achilles tendon attach?
Posterior portion of calcaneus
Which bone articulates with the tibia and fibula to form the ankle joint?
Talus
What type of joint is the ankle joint?
Bracket shaped synovial
Dorsiflexion vs Plantar flexion
Plantar: form a 180 dgeree with leg
Dorsiflexion: form a 90 degree with leg
What type of joint is the Talocrural joint (ankle joint)
Uniaxial, synovial, hinge type
What is the origin of the deltoid ligament and how many parts is it divided into based on insertion points?
Origin - Medial malleolus
4 parts
How many parts is the lateral ligament divided into?
3
Is the deltoid ligament medial or lateral?
Medial
Diagram of the Tarsal Tunnel
Which nerve passes through the tarsal tunnel?
Tibial Nerve
Radiograph of the ankle joint. Just concern yourself with the ones that are highlighted
What are the actions of the intrinsic muscles of the foot?
Modify actions of long tendons and generate fine movements of the toes
What are the intrinsic muscles of the foot?
Dorsal
-Extensor digitorum brevis
Plantar
-4 layers
Which nerve innervates the extensor digitorum brevis?
Deep fibular nerve
Which toes does the extensor digitorum brevis extend?
II - V
Also aids in extension of MTP of first toe
Which nerve innervates the 2nd,3rd and 4th layers of the Plantar?
Lateral plantar nerve
Which nerve innervates the most superficial layer of the plantar?
Medial Plantar Nerve
Diagram of the achilles tendon
Tendonitis of the calcaneal tendon is the result of what?
A ruptured achilles tendon
How does a ruptured achilles tendon usually present itself?
Sudden calf pain, audible snap, subsequent inability to plantar flex the foot
Radiograph example of a torn achilles tendon
Which coimpartment of the leg is the primary everters of the foot?
Lateral
General vasular supply of the entire lower extremeity diagram
Another diagram of the bones of the foot and ankle
