Posterior Thigh & Popliteal Fossa Flashcards
What are the muscles of the Hamstrings?
Semitendinosus, Semimembranosus and Biceps Femoris
What is the function of the hamstring muscles?
To extend hip and flex the knee
What is the proximal attachment of the Semitendinosus?
Ischial tuberosity
What is the distal attachment of the Semitendinosus?
Medial surface of superior tibia
What is the innervation of the Semitendinosus?
Tibial division of Sciatic (L5, S1 and S2)
What is the proximal attachment of the Semimembranosus?
Ischial tuberosity
What is the distal attachment of the Semimembranosus?
Posterior surface of medial condyle of tibia
What is the innervation of the Semimembranosus?
Tibial division of Sciatic (L5, S1 and S2)
What is the proximal attachment of the long head of the Biceps Femoris?
Ischial tuberosity
What is the proximal attachment of the short head of the Biceps Femoris?
Linea aspera and lateral supracondylar line of femur
What is the distal attachment of the Biceps Femoris?
Lateral head of Fibula
What is the innervation of the long head of the Biceps Femoris?
Tibial division of Sciatic (L5, S1 and S2)
What is the innervation of the short head of the Biceps Femoris?
Common perineal division of Sciatic (L5, S1 and S2)
What gives lateral rotation when the knee is flexed?
Biceps Femoris
what gives medial rotation when knee is flexed?
Semimembranosus, Semitendinosus, Gracilis and Sartorius
Where does the Sciatic nerve originate?
Anterior rami L4-S3
Where is the Sciatic nerve in the posterior compartment of the thigh?
Deep to the long head of biceps femoris
What are the divisions of the sciatic nerve?
Tibial and common peroneal
What makes up the rook of the popliteal fossa?
Deep fascia
What is the deep fascia pierced by in the popliteal fossa?
Sural nerve and short saphenous vein
What are the superior boundaries of the popliteal fossa?
Diverging tendons of Hamstrings. Biceps femurs laterally and Semimembranosus/ Semitendinosus medially
What are the inferior boundaries of the popliteal fossa?
Medial and lateral heads of Gastrocnemius
What are the contents of the popliteal fossa?
Popliteal artery, popliteal vein and terminal branches of Sciatic nerve (Tibial and Common peroneal)
What makes up the floor of the popliteal fossa floor?
Popliteal surface of the femur, Joint capsule of the knee joint and popliteus muscle
What is the ligament within the popliteal fossa floor?
Oblique popliteal ligament
What is the function of the Oblique popliteal ligament?
Reinforced knee joint capsule
What is the oblique popliteal ligament an expansion of?
Semimembranosus muscle
What pierces the joint capsule to supply cruciate ligaments?
Middle Genicular vessels
The popliteal artery is a continuation of what?
The femoral artery
How many vehicular branches are of the popliteal artery?
5
Where does the popliteal artery originate from?
The adductor hiatus
Where does the popliteal artery terminate?
Inferior border of popliteus
What are the terminal branches of the popliteal artery?
Anterior Tibial artery and Posteror Tibial artery
