Flashcards in Exam 4 Deck (260)
What are the bones of the leg?
• Tarsal bones
The tarsal bones consist of..?
– Three cuneiforms (Medial, Intermediate, Lateral)
How many metatarsals are there?
The great/ big toe has how many phalanges, and each subsequent toes has how many?
Great toe: 2
Subsequent toes: 3
The fibula head sits _____ to the tibia
Sits behind/ posterior lateral
What are the blue surfaces on the posterior of the tibia?
The articular surfaces on the medial and lateral side of the tibia plateaus for the articulation of the medial and lateral condyles of the femur
What three structures form the ankle mortice for the articulation with the talus?
- Lateral malleolus
- Tibial pilon (plafond)
- Medial malleolus
The ____ passes below the peroneal trochlea and the ___ passes above it
- The peroneal longus passes below the peroneal trochlea
- The peroneal brevis passes above the peroneal trochlea
Where can we sometimes measure the navicular drop?
The navicular tuberosity
How to measure the navicular drop
If patients are sitting without any weight on their foot, you measure thee distance from the navicular tuberous to the floor and have the patient stand and put their boy weight through the lower extremity and remeasure the distance from the navicular tuberosity to the floor.
What does it mean if there's a significant difference in the two navicular drop measurements?
It could indicate a navicular drop and a flat foot
The calcaneal tuberosity is the attachment of the ___
What is the projection of the calcaneus that forms the shelf for the tendon of flexialis longus?
What two bones form the transverse tarsal joints?
The navicular and cuboid
The connections between the mediate and intermediate lateral cuneiforms and the cuboid with the 1st-5th metatarsals is the...
The transverse tarsal joint is the joint between the ___ and the ___ and their articulation with the __ and the ____
The talus and the calcaneus and their articulations with the navicular and cuboid
The groove for peroneus longus passes ____
around the cuboid and inserts through the medial cuneiform and also the base of the 1st and 2nd metatarsal
What ligament covers the head of the talus and forms the inferior part of the joint surface for the talonavicular joint?
The plantar calcaneal navicular ligament (AKA spring ligament)
The leg runs from the ___ to the ____
Between the knee and ankle
The crural fascia has bony attachments that ____
divide the leg into 3 compartments
What are the three compartments of the leg?
- Anterior intermuscular septum
- Posterior intermuscular septum
- Transverse crural septum
The anterior intermuscular septum separates the ____
anterior and lateral compartments
The posterior intermuscular septum separates the ___
The lateral and posterior compartments
The transverse crural septum separates the _____
posterior septum into a superficial and deep layer
The anterior compartment is supplied by the ____ and innervated by the ____
Supplied by the anterior tibial artery and innervated by the deep peroneal nerve
What are the muscles of the anterior leg?
- Tibialis anterior
- Extensor digitorum longus
- Extensor hallicus longus
- Peroneus/ fibular tertius
What does dorsiflexion of the tibialis anterior do to the foot and why?
It will bring the foot up, because it attaches to the medial surface of the foot. It also inverts the foot. So it turns the sole of the foot upwards or medially
The extensor digitorum longus is on the __ side of the tibialis anterior
The extensor hallucis longus is housed ___
between the the tibialis anterior and the extensor digitorum longus