Flashcards in Lower Leg, Ankle and Foot Anatomy Deck (37)
What are the muscle compartments of the leg?
What nerves supply the muscles of the leg?
-Common fibular and its superficial and deep branches
-Tibial nerve (branch of sciatic)
What is the most frequently injured joint of the body?
What type of joint is the ankle?
Uniaxial Synovial hinge
Where is the ankle joint located
Between the distal part of tibia,fibula & upper part of talus
What is the ankle joint critical in?
Weight bearing and walking
What bones are involved in articulation at the ankle?
What are the 2 prominences present at the ankle joint?
When is malleolar grip strongest?
When is the ankle joint unstable?
During plantar felxion
What are the features of the ankle capsule?
Thin in front and behind
What is the ankle capsule supported by?
-Medial (deltoid) ligament
What are the features of the medial (deltoid) ligament of the ankle?
-Large, strong triangular band
-Three slips from medial malleolus to talus, calcaneus & navicular
-Stabilizes the joint during eversion
What are the features of the lateral ligament of the ankle?
-Has three slips
-Weaker than medial ligament
-Commonly involved in ankle injuries
What muscles are involved in dorsiflexion?
-Extensor digitorum longus
-Extensor halluces longus
-Peroneus or fibular tertius
What muscles are involved in plantar flexion?
-Assisted by plantaris,
-Flexor hallucis longus
-Flexor digitorum longus
What type of injury is a sprain?
What is a Pott fracture?
Dislocation of the ankle
What is footballer's ankle?
Repeated strain in the anterior capsule
What is tarsal tunnel syndrome?
Tibial nerve compression deep to flexor retinacula
What aponeurosis is present on the sole of the foot?
What nerves and arteries run deep to the plantar aponeurosis?
-Lateral plantar nerve and artery
-Medial plantar nerve and artery
How many dorsal interossei are there?
How may plantar interossei are there?
What is the skeleton of the foot divided into?
Tarsus, metatarsus and phalanges
What is the function of the foot?
-Support the body in standing and progression
-Lever it forwards in walking, running and jumping
Where does inversion and eversion occur in the foot?
Movements occur at the subtalar and transverse tarsal joints
What muscles invert the foot?
What muscles evert the foot?