Gross 2 Foot and Ankle Flashcards
What bones make up the Hindfoot?
Talus and Calcaneus
What bones make up the Midfoot?
Navicular, Cuneiform, Cuboid
What bones make up the Forefoot?
Metatarsals, and Phalanges
Describe the Dorsum of the foot/ Dorsal surface of the foot.
Skin is thinner and looser
Describe the Sole of the foot/Plantar Surface.
-Skin is thicker and highly innervated
-Heel: Part of the sole under the calcaneus
-Fat pad for shock absorption
-Ball of the foot: part of the sole under the metatarsal heads
What are the requirements of the Ankle?
Must be both rigid and mobile:
-Rigid for propulsion for walking, running, jumping
-Mobile to accommodate to uneven terrain, absorb shock and control proximal forces
What are the ten articulations of the foot?
1) Inferior TibioFibular
2) Talocrural (Ankle)
3) Talocalcaneal (Anatomical subtalar)
4) Talocalcaneonavicular (Transverse Tarsal Joint)
5) Calcaneocuboid (Transverse Tarsal Joint)
6) Cuneonavicular
7) Tarsalmetatarsal
8) Intermetatarsal
9) Metatarsalphalangeal
10) Interphalangeal
What are the three motions that take place when you Doriflex?
-Inversion
-Adduction
-Dorsiflexion
What are the three motions that take place when you platarflex?
-Eversion
-Abduction
-Platarflexion
What limits the spreading of the distal tibio-fibular articulation?
Interosseous Fibular Ligament
A high grade sprain of the interosseous (Crural) Fibular Ligament would result in excessive motion at which joint?
Distal Tibiofibular Joint
What bones make up the articulation of Talocrural joint?
Talus with the distal tibia/fibula
What type of joint and what motions does the Talocrural joint produce?
Type:
Hinge type synovial joint
Movement:
Dorsiflexion and Platarflexion
What ligaments help stabilize the Talocrural Joint?
Lateral and Medial Collateral Ligaments
-As well as the ligaments of the inferior tibiofibular joint
What are the Lateral Collateral Ligament of the Ankle? (3)
-Anterior Talofibular
-Posterior Talofibular
-Calcaneal Fibular
What are the four Deltoid Ligaments?
Anterior Tibiotalar Lig.
Posterior Tibiotalar Lig.
Tibionavicular Lig.
Tibiocalcaneal Lig.
What are the Lateral Collateral Ligaments of the ankle?
-Anterior Talofibular Lig.
-Calcaneal Fibular Lig.
-Posterior Talofibular Lig.
What type of joint and what movements does the TaloCalcaneal (Subtalar) Joint Provide?
Type: Plane of Synovial Joint
Movement: Eversion/Inversion
What ligaments help support the Talocalcaneal (Subtalar) Joint?
Medial, Lateral, Posterior and Interosseous Talocalcaneal Ligament: binds bones together
-Calcaneal Fibular limits excessive inversion
-Tibiocalcaneal fibers of deltoid limits excessive eversion
What type of joint is Transverse Tarsal?
A Compound Joint
What two joints make up the Transverse Tarsal Joint?
Talonavicular and Calcaneocuboid
What is the articulation for Talonavicular (Transverse Tarsal)?
Articulation with head of talus to posterior aspect of navicular bone
What is the articulation for Calcaneocuboid (Transverse Tarsal)?
Anterior end of calcaneus articulates with posterior surface of cuboid
What are the movements of the Transverse Tarsal Joint?
Supination and Pronation