LEG Flashcards
GLUTEUS MAXIMUS
O: iliac crest, sacrum, coccyx
I: illiotibial tract, femur
A: hip extension
GLUTEUS MEDIUS
O: illium
I: femur
A: abducts hip
TENSOR FASCIA LATAE
O: iliac crest
I: illiotibial crest
A: abducts, flexes and medially rotates thigh
GRACILIS
O: ramus of pubis
I: pes anserine
A: adduction of thigh, flexes leg
HAMSTRING MUSCLES
- BICEPS FERMORIS
- SEMITENDINOSUS
- SEMIMEMBRANOSUS
BICEPS FEMORIS
O: ischial tuberosity, linea aspera of femur
I: fibula, lateral tibia
A: flexes leg at knee, extends thigh at hip
SEMITENDINOSUS
O: ischial tuberosity
I: medial tibia
A: flexes leg at knee, extends thigh at hip
SEMIMEMBRANOSUS
O: ischial tuberosity
I: medial tibia
A: flexes leg at knee, extends thigh at hip
ADDUCTOR MAGNUS
O: ischial tuberosity
I: linea aspera of femur
A: adducts and extends thigh
ADDUCTOR LONGUS
O: inferior ramus of pubis
I: linea aspera of femur
A: adducts and flexes thigh
pulled groin/horseback riding
ILIASCUS
O: ilium
I: femur
A: flexes thigh
PSOAS MAJOR
O: transverse process of T12-L5
I: femur
A: flexes thigh
SARTORIUS
O: iliac spine
I: tibia
A: flexes leg and thigh, “crosses leg”
WHAT IS THE LONGEST MUSCLE IN BODY
SARTORIUS
QUADRICEPS MUSCLES
- RECTUS FEMORIS
- VASTUS LATERALIS
- VASTUS MEDIALIS
- VASTUS INTERMEDIUS
RECTUS FEMORIS
O: iliac spine
I: patellar ligament
A: flexes hip, extends knee
VASTUS LATERALIS
O: femur
I: patellar ligament
A: extends leg
VASTUS MEDIALIS
O: linea aspera of femur
I: patellar ligament
A: extends leg
VASTUS INTERMEDIUS
O: femur
I: patellar ligament
A: extends leg
GASTROCNEMIUS
O: femur
I: callaneus
A: plantar flexion
also known as achilles tendon
SOLEUS
O: fibula, tibia
I: calcaneus
A: plantar flexion
TIBIALIS ANTERIOR
O: tibia
I: base of 1st metatarsal, medial cuneiform
A: dorsiflexion, inversion of foot
EXTENSOR DIGITORUM LONGUS
A: extends toes, dorsiflexes and everts foot
FIBULARIS LONGUS
A: everts foot, plantar flexion
also called peroneus longus
FIBULARIS BREVIS
A: everts foot, plantar flexion
also called peroneus brevis
