Subtalar joint

Question 1

Subtalar joint

Answer 1

synovial joint modified saddle/plane joint

concave oval facet on the inferior body of the talus to the corresponding oval facet on the calcaneus

thin loose capsule surrounds the joint attaching to the margins of the articular surface lined by synovial membrane

strengthened by the medial posterior and lateral talocalcanean ligaments

Question 2

Midtarsal Joint

Answer 2

combined talocalcaneousnavicular and calcaneocuboid joints

irregular joint line

Question 3

talocalcaneousnavicular joint

Answer 3

synovial ball and socket joint

rounded convex head of the talus
anterior part of socket is concave navicular surface
posterior part is formed by concave sustentaculum tali and surface of calcaneus

Question 4

calcaneo-cuboid joint

Answer 4

synovial plane/saddle joint

anterior surface of calcaneus to posterior cuboid

Question 5

inversion

Answer 5

foot is turned inwards raising towards the medial border so the sole of the foot faces medially

combination of adduction and supination of the foot usually accompanied by plantar flexion

Question 6

eversion

Answer 6

foot is turned outwards raising towards the lateral border so the sole of the foot faces laterally

combination of abduction and pronation of the foot usually accompanied by dorsifexion