Lower Limb II Flashcards
Which muscle attaches to the adductor tubercle?
- adductor magnus
What is the adductor hiatus and which structures pass through it?
- femoral artery
- femoral vein
- saphenous nerve
- gap between adductor magnus and femur
Label this image
Label this with
- Medial and Lateral Condyle
- Intercondylar eminence
- Medial and lateral Intercondylar Tubercle
- Articular facet for the head of the fibula
- Tibial tuberosity
- Soleal line
- Interosseous border
- Medial malleolus
- Fibular notch
- Groove for tibialis posterior and flexor digitorum longus tendons
Fibula :
- Apex, Head and Neck
- Interosseous border
- Lateral malleolus
- Malleolar fossa of lateral malleolus
- Articular facet of lateral malleolus
Which structures attach to the Intercondylar eminence?
- The anterior and posterior cruciate ligaments and the menisci attach to the intercondylar area
Where do the patellar tendons insert?
- tibial tuberosity
What attaches on the soleal line?
- soleus muscle
What attaches to the linea aspera?
- adductor magnus
- vastus lateralis
Label this image
Where is the tibia most commonly fractured?
- narrowest point
- inferior 2/3
In which direction does the patella most commonly dislocate?
What factors help prevent dislocation?
- outwardly
- anterior projection on the lateral femoral condyle, lateral to the patellar groove preventing lateral dislocation of the patella
What type of joint is the knee joint?
- synovial hinge joint
What movements occur at the knee joint?
- flexion
- extension
- lateral rotation
- medial rotation
What muscles flex the knee?
- hamstrings, gracilis, sartorius and popliteus.
Which muscles extend the knee?
- quadriceps femoris
Which muscle laterally rotates the knee?
- biceps femoris
Which muscles medially rotate the knee?
- semimembranosus, semitendinosus, gracilis, sartorius and popliteus.
Where does the iliotibial tract continue from?
- thickening of the fasciae latae
What actions does the iliotibial tract produce?
- helps to extend, abduct, and rotate your hip
what is the importance of the iliotibial tract in the knee joint?
- provides lateral stabilisation to the knee joint
Why is the patellar tendon also called the patellar ligament?
- The patellar tendon is also called the patellar ligament because it connects the patella to the tibia
Where does the great saphenous vein run and where does it drain?
- from the medial part of the dorsal venous arch of the foot all the way up to drain into the femoral vein at the saphenous opening
What does the short saphenous vein drain and where does it drain into?
- Drains the lateral side of the foot and it drains into the popliteal vein
What is the crural fascia?
- continuation of the fasciae latae
What is the crural fascia pierced by?
- the short saphenous vein
Label this image
What are the compartments of the leg?
- anterior
- posterior
- lateral
What types of muscles are contained in the anterior compartment of the leg?
- dorsiflexors of the ankle/extensors of the toes
What types of muscles are contained in the posterior compartment of the leg?
- posterior flexors
- flexors of the toes
What is the action of the muscles in the lateral compartment of the leg?
- evertors of the foot
Label this image
What are the 4 muscles in the anterior compartment of the leg?
- tibialis anterior
- extensor digitorum longus
- extensor hallucis longus
- peroneus tertis
What nerve are the muscles in the anterior compartment supplied by?
- deep peroneal nerve
What 2 compartments does the peroneus tertius span?
- partly in the lateral
- partly in the anterior
Label this image
1) gastrocnemius
2) soleus
3) tendo calcaneus
What 2 muscles converge onto the achilles tendon?
- gastrocnemius
- soleus
What are the gastrocnemius and the soleus referred to as collectively?
- triceps surae
What is the nerve supply to the deep layer of the posterior compartment?
- tibial nerve
Label this image
Where do the deep tendons of the deep layer of the posterior compartment pass?
- under the medial malleolus
Where do the tendons of the lateral compartment pass?
- under the lateral malleolus
What is the nerve supply to the lateral compartment?
- superficial peroneal nerve
What is the muscle that is not supplied by the superficial peroneal nerve in the lateral compartment?
- peroneus tertius
Label this image
Name all the muscles in the posterior compartment of the leg
- superficial : gastrocnemius + soleus
- deep : plantaris, popliteus, tibialis posterior, flexor digitorum longus, flexor hallucis longus
What does the common peroneal nerve divide into?
- deep and superficial branches
What are the superior and inferior boundaries of the popliteal fossa?
- superior : hamstrings
- inferior : gastrocnemius
What 4 structures does the popliteal fossa contain?
- the tibial nerve
- common peroneal
- popliteal artery
- popliteal vein
What does the sciatic nerve bifurcate into at the popliteal fossa?
- tibial nerve and common peroneal
Where does the common peroneal nerve wind around?
- head of the fibula
What does the adductor hiatus contain?
- popliteal vein and artery
Label this image
Where do the tibial nerve and popliteal artery go?
- pass down through the popliteal fossa, they pierce an opening in the soleus muscle
- continue between the superficial and deep layers of the muscles
What does the posterior tibial artery divide into?
- lateral peroneal branch
What are the 5 structures that pass from the posterior compartment into the plantar region of the foot?
- Tibialis posterior
- Flexor digitorum longus
- Artery
- Nerve
- Flexor hallucis longus
Label this image
What nerve supplies the lateral compartment?
- superficial peroneal nerve
What nerve supplies the anterior compartment?
- deep peroneal nerve
Which nerve when damaged leads to foot drop?
- deep peroneal nerve
Where do the anterior peroneal artery and vein run?
- on the interosseous membrane
When does the anterior tibial artery change its name and what name is this?
- when anterior tibial artery passes onto the dorsum of the foot it is called the dorsalis pedis
Label this image
What is a bursa?
- sac of synovial fluid associated with a joint
What are the function of bursae?
- prevent friction when soft tissue (e.g tendon) rubs against bone
How many bursae are associated with the knee?
- 12
Label this image
Label this image
Where does the lateral collateral ligament of the knee pass?
- between the distal femur and the head of the fibula and on the medial side the medial collateral ligament
What acts as a shock absorber for the tibial condyles?
- medial and lateral meniscus which act as a shock absorber