Ankle Joint

Question 1

Bones at the ankle

Answer 1

talus & tibia, fibula,
calcaneus, navicular

Question 2

Role of Talus Bone

Answer 2

Weight bearing link between tibia and foot

Question 3

Articulations at the ankle

Answer 3

-Tibiotalar- fibia and talus
-Talocrural- distal fibula, tibia, and talus
- Subtalar- Talus and calcaneus
- Midtarsal- talonavicular and calcaneocuboid

Question 4

Movement of the ankle

Answer 4

-Tibiotalar: plantar/dorsi flexion
- Talocrural: Stretches talofibular ligament, Stabilizes joint
-Subtalar: Allows eversion and inversion
-Midtarsal: shock absorption of forefoot

Question 5

Roles of Achilles Tendon

Answer 5

-Achilles tendon lengthens during
stance phase of walking/running
-Energy storage and return

Question 6

3 foot arches

Answer 6

1) Medial longitudinal (supported by active/passive mechanisms)
2) Lateral longitudinal (disappears when bearing weight)
3) Transverse (metatarsals)

Question 7

Functions of the foot arch

Answer 7

-weight support, reduce shear stress

Question 8

Pes Planus

Answer 8

-Abnormally dropped medial longitudinal arch
- Compromised ability to dissipate loads
- Increased muscular activity to compensate for the loss