Muscles Vl Flashcards
Rectus Femoris
O: anterior inferior iliac spine
I: tibial tuberosity via patella
A: extend knee
Vastus Lateralis
O: linea aspera
I: tibial tuberosity via patella
A: extend knee
pinky toe side
Vastus Medialis
O: linea aspera
I: tibial tuberosity via patella
A: extend knee
Vastus Intermedius
O: anterior surface femur
I: tibial tuberosity via patella
A: extend knee
deep to rectus femoris
Sartorius
O: anterior superior iliac spine
I: tibial tuberosity
A: flex hip and knee, laterally rotate femur
What is the longest muscle in the body?
Sartorius
Gracilis
O: inferior ramus of pubis
I: tibia
A: adducts hip and flexes knee
most medial
Adductor Magnus
O: inferior ramus of ischium
I: linea aspera
A: adduct and medially rotate femur
deep to adductor longus
Adductor Longus
O: body of pubis
I: linea aspera
A: adducts and medially rotates femur
Pectineus
O: superior ramus of pubis
I: femur
A: flexes hip
most lateral
Biceps Femoris
O: ishial tuberosity
I: head of fibula
A: flex knee, extend hip
lateral
Semitendinosus
O: ishial tuberosity
I: tibia
A: flex knee, extend hip
Semimembranosus
O: ishial tuberosity
I: tibia
A: flex knee and extend hip
Gastrocnemius
O: lateral and medial condyle
I: calcaneous
A: plantar flexion
Soleus
O: fibula, tibia
I: calcaneous
A: plantar flexion
deep to gastrocnemius
Tibialis Posterior
O: posterior tibia and fibula
I: navicular, metatarsals 2-5
A: invert foot
tendon runs medial (invert)
Flexor Hallucis Longus
O: distal fibula
I: distal phalanx 1
A: flex big toe
originates lateral and runs medial
Fibularis Longus
O: proximal fibula
I: medial cuneiform and metatarsal 1
A: everts and plantar flexes foot
crosses under foot
Tibialis Anterior
O: tibia
I: metatarsal 1
A: dorsiflexion and inversion of foot
shin splints
Extensor Hallucis Longus
O: anterior fibula
I: distal phalanx 1
A: extends big toe
deep to tibialis anterior, “sliver”
