AP11 - The Knee, ankle, and foot Flashcards
What is the patella connected to?
quadriceps femoris tendon
patella ligament
What are the 2 main articulations of the knee?
tibiofemoral
patellofemoral
What does the patellofemoral articulation allow?
tendon of the quadriceps femoris to be inserted directly over the knee, increasing the efficiency of the muscle
reduces friction
What menisci are present in the knee?
fibrocartilage, median and lateral aspects on the tibia
What are the 2 main functions of the menisci of the knee?
depeens articular surface of tibia, increasing stability
shock absorption
What is the significance of the structure of the median meniscus?
it is attached to the MCL, so MCL damage usually results in medial meniscal damage
Which menisci is bigger?
the medial meniscus
What are the 4 bursae in the knee?
suprapatella
prepatela
infrapatella
semimembranous
What form the genicular anastomoses?
femoral and popliteal arteries
Where is the suprapatellar bursae?
between the quadriceps femoris and the femur
Where is the prepatellar bursae?
between the apex of the patella and skin
Where is the infrapatellae bursa?
either side of the patella tendon
it has superficial and deep parts
Where is the semimembranous bursa?
posterior to the knee (popliteal fossa), between semimembranous muscle and medial head of gastrocnemius)
Which ligaments are on the medial side of the ankle?
The Deltoid Ligament
deep - posterior tibiotalar ligament, anterior tibiotalar ligament
superficial - tibiocalcaneal ligament, tibioavicular ligament
What does the deltoid ligament do?
prevents over-eversion of the foot
What ligaments are on the lateral aspect of the ankle?
anterior talofibular
posteroir talofibular
calcaneofibular
What 3 muscles are in the superficial posterior leg compartment?
gastrocnemius
soleus
plantaris
What does gastrocnemius do?
plantarflexion, flexes knee
Which 4 muscles are in the deep posterior leg compartment?
popliteus
tibialis posterior
flexor digitorum longus
flexor hallucis longus
What does popliteus do?
forms base of popliteal fossa
laterally rotates the femur