Muscle Quiz 2 Flashcards
Biceps Femoris Origin
Ischial tuberosity of os coxa
Biceps Femoris Insertion
Head on fibula and lateral condyle of tibia
Biceps femoris Action
Flexes leg at knee
Semitendinosus Origin
Ischial tuberosity of os coxa
Semitendinosus Insertion
Proximal tiba, medial to tibial tuberosity
Semitendinosus Action
Flexes leg at knee
Semimembranosus Origin
Ischial tuberosity of os coxa
Semimembranosus Insertion
Posterior medial condyle of the tibia
Semimembranosus Action
Flexes leg at knee
Rectus femoris Origin
Anterior inferior iliac spine and ilium above the acetabulum
Rectus femoris Insertion
Quadriceps tendon to the base of the patella and onto the tibial tuberosity
Rectus femoris Action
Flexes thigh at hip
Vastus lateralis Origin
Greater trochanter
Vastus lateralis Insertion
Quadriceps tendon to base of patella and onto the tibial tuberosity
Vastus lateralis Action
Extends leg at knee
Vastus medialis Origin
Intertrochanteric line
Vastus medialis Insertion
Quadriceps tendon to base of patella and onto the tibial tuberosity
Vastus medialis Action
Extends leg at knee
Vastus Intermedius Origin
Anterior and lateral surfaces of femur shaft
Vastus Intermedius Insertion
Quadriceps tendon to base of patella and onto the tibial tuberosity
Vastus Intermedius Action
Extends leg at knee
Sartorius Origin
Anterior superior iliac spine
Sartorius Insertion
Proximal tibia, medial to tibial tuberosity
Sartorius Actiion
Flexes leg at knee
Gracilis Origin
Inferior border of pubic body
Gracilis Insertion
Proximal medial surface of the tibia
Gracilis Action
Flexes leg at the knee
Adductor magnus Origin
Oblique head- inferior ramus of pubis and the ischial ramus
Vertcial head- ischial tuberosity
Adductor magnus Insertion
Oblique head- Gluteal tuberosity
Vertical head- adductor tubercle of femur
Adductor magnus Action
Oblique head- adducts and flexes the thigh at hip
Vertical head- extends thigh at hip
Adductor longus Origin
Superior aspect of pubis, below the pubic tubercle
Adductor longus Insertion
Linea aspera of femur
Adductor longus Action
Adducts and flexes
Adductor brevis Origin
Lateral surface of inferior ramus of pubis
Adductor brevis Insertion
Proximal portion of linea aspera
Adductor brevis Action
Adducts and flexes
Gluteus medius Origin
Outer surface of ilium
Gluteus medius Insertion
Lateral and superior surfaces of the greater trochanter of femur
Gluteus medius Action
Abducts thigh at hip
Medially rotates thigh
Laterally rotate thigh at hip
Gluteus maximus Origin
Surface of the ilium posterior to posterior gluteal line and posterior inferior surface of sacrum and coccyx
Gluteus maximus Insertion
Gluteal tuberosity of femur
Gluteus maximus Action
Extends laterally rotates thigh at the hip
Help abduct the thigh
Gastrocnemius Origin
Medial head- medial condyle of the femur
Lateral head- lateral condyle of the femur
Gastrocnemius Insertion
Posterior calcaneus
Gastrocnemius Action
Plantar flexion
Soleus Origin
Proximal half of posterior surface of tibia
Soleus Insertion
Posterior calcaneus
Soleus Action
Plantar flexion
Tibialis Anterior Origin
Lateral condyle
Tibialis Anterior Insertion
Medial and plantar surfaces of medial cuneiform
Tibialis Anterior Action
Dorsi flexion