Popliteal Fossa & Posterior Leg Flashcards
What are the boundaries of the popliteal fossa?
Superomedially = Semitendinosus/semimembranosus Superolaterally = Biceps femoris Inferiorly = Medial & lateral heads of gastrocnemius
What are the components of the neuromuscular bundle found in the popliteal fossa?
Superficial to Deep
Tibial nerve
Popliteal vein (+ popliteal LN)
Popliteal artery
What are the superficial muscles of the posterior leg?
Gastrocnemius
Soleus
Plantaris
What are the deep muscles of the posterior leg?
Popliteus
Flexor hallicus longus
Flexor digitorium longus
Tibialis posterior
What is the action of the deep muscles of the posterior leg?
Plantar flexion of ankle and toes
From anterior to posterior, which structures leave the posterior compartment to reach the sole of the foot?
Tibialis posterior tendon flexor Digitorium longus tendon posterior tibial Artery tibial Nerve flexor Halicus longus tendon Tom Dick ANd Harry
What is the structure of gastrocnemius?
Two heads and two muscle bellies (lateral and medial)
What are the attachments of gastrocnemius?
P = Medial and lateral condyles D = Calcaneus (via Achilles tendon)
What are the attachments of soleus?
P = Neck of femur and soleal line of tibia D = Calcaneus (via Achilles tendon)
What are the branches of the popliteal artery?
Anterior and posterior tibial arteries
Fibular artery branches off posterior tibial
Where does the anterior tibial artery supply?
Anterior compartment of the leg
Where does the posterior tibial artery supply?
Posterior compartment of the leg
Where does the fibular artery supply?
Lateral compartment of the leg
What are the attachments of the deep muscles of the posterior leg?
P = Tibia, mid shaft of fibula and interosseous membrane
D = TP, medial tarsal bones
FDL, distal phalanges of lateral 4 toes
FHL, distal phalanx of great toe
