Posterior Compartment of Thigh Flashcards
What are the Origins of Semimembranosus?
ISCHIAL TUBEROSITY
supero-lateral impression
What are the INSERTIONS of Semimembranosus?
MEDIAL TIBIAL CONDYLE
What is the NERVE supply to Semimembranosus?
TIBIAL part of SCIATIC Nerve
L5, S1, S2
What is the ACTION of Semimembranosus?
Flexion of leg at knee joint.
Extension of thigh at the hip.
Medially rotates thigh at the hip joint.
Medially rotates the leg at the knee joint.
What is the ORIGIN of Semitendinosus?
ISCHIAL TUBEROSITY
Infero-medial part of the upper area
What is the INSERTION of Semitendinosus?
Medial surface of proximal tibia
What is the NERVE supply of Semitendinosus?
TIBIAL part of the SCIATIC Nerve
L5, S1, S2
What are the actions of Semitendinosus?
Flexion of the leg at the knee joint.
Extension of the thigh at hip.
Medially rotates the thigh at the hip.
Medially rotated the leg at knee
What is the ORIGIN of Biceps Femoris?
Long Head = ISCHIAL Tuberosity
Short Head = Lateral lip of LINEA ASPERA
What is the INSERTION of Biceps Femoris?
Head of Fibula
What is the NERVE supply to Biceps Femoris?
Long Head = Tibial Part of Sciatic Nerve (L5, S1, S2)
Short Head = Common fibular part of the sciatic nerve (L5, S1, S2)
What are the actions of Biceps Femoris?
Flexion of knee
Extends the leg at the hip.
Laterally rotates thigh at the hip.
Laterally rotates leg at the knee.
