Presentation on theme: "Muscles that act on the lower legs"— Presentation transcript:
1 Muscles that act on the lower legs 1. Quadriceps femoris- anterior extensorsa. Rectus femoris- also extends thigh, runs parallel through the midline1. Originates from inferior iliac spine2. Inserts at upper border of patella
3 b. Vastus lateralis1. Originates from greater trochanter and linea aspera2. Inserts at tibial tuberosity through patellar ligamentc. Vastus medialis1. Originates from linea asperad. Vastus intermedialis1. Originates from anterior, lateral surface of femur
8 3. Hamstrings- posterior flexors and extend thigh a. Biceps femoris1. Long head from ischial tuberosity, short from linea aspera2. Inserts at head of fibula and lateral condyle of tibiab. Semitendinosus1. Origin is ischial tuberosity2. Inserts at proximal part of medial surface of tibia
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