The Ankle Joint and the Bones of the Foot Flashcards
What are the two bones of the hindfoot?
The talus and the calcaneus.
What bones does the talus articulate with?
Anteriorly and superiorly with the tibia and laterally with the fibula to form the talocrural joint.
It also articulates with the calcaneus which forms the subtalar joint.
Lastly it articulates with the navicular to form the talonavicular joint.
What kind of bone is the talus?
A short bone.
What three parts is the talus composed of?
The head, neck and body.
What five articular surfaces are present on the talus?
- The trochlea (forms the talocrural joint)
- Anterior calcaneal articular surface.
- Middle calcaneal articular surface.
- Posterior calcaneal articular surface.
- Navicular articulate surface (talonavicular joint)
(2,3,4 –> subtalar joint)
What are the three articulate surfaces of the calcaneus?
Anterior, middle and posterior talar articular surface.
What structure of the calcaneus forms the bulk of your heal?
The calcaneal tuberosity.
What are the bones of the midfoot?
- Navicular bone
- Cuboid bone
- Lateral cuneiform bone
- Intermediate cuneiform bone
- Medial cuneiform bone
What are the bones of the forefoot?
- The metatarsal bones.
- Proximal phalanges.
- Middle phalanges.
- Distal phalanges.
5.
How is the metatarsal bones numbered?
1-5. 1 being most medial and 5 being most lateral.
What are the joints between the metatarsal bones and the tarsals?
Tarsometatarsal joints.
What are the joints between the proximal ends of the metatarsals called?
The intermetatarsal joints.
What are the three parts of the metatarsals?
The base, body, and head.
What two important arches of the foot do the metatarsal bones contribute to?
The longitudinal and the transverse arch.
What is the articulation between the metatarsal bones and the proximal phalanges called?
The metatarsophalangeal joint.
