Posterior Thigh and Popliteal Fossa Flashcards
What muscles does the hamstring contain?
Semimembranosus, semitenindosus, biceps femoral
What group of muscles lie in the posterior thigh?
The hamstrings
What is the common proximal attachment of the semitenindosus, semimembranosus and the long head of biceps femoris?
Ischial tuberosity
What is the innervation of semimembranosus?
Tibal nerve L5-S2
What is the innervation of semitendonosus?
Tibial nerve l5-s2
What is the innervation of the long head of biceps femoris?
Tibial never L5-S2
Where does the long head of biceps femoris insert?
Head of fibula
What are the three insertions of semimembranosus?
Medial tibial condyle
Oblique popliteal ligament
Popliteus fascia
Where does semitenindosus insert?
Just medial to tibial tuberosity
What is the origin of the short head of biceps femoris?
Lateral lip of the linea aspera in the middle third of the femur
What is the insertion of the short head of biceps femoris?
Head of fibula
What is the innervation of the short head of biceps femoris?
Common fibular nerve L5-S2
What are two functions of the hamstrings at the hip?
Extend hip
Stabilise pelvis in Sagittal plane
What are the combine actions of the hamstrings at the knee?
Flexion
External rotation
Internal rotation
What are the functions of biceps femoris at the knee?
Flexion and external rotation