Anterior Leg Muscles

Question 1

Rectus femoris

Answer 1

ORIGIN: anterior inferior iliac spine
INSERTION: tibial tuberosity
ACTION: Flexes the hip and extends the knee

Question 2

Vastus lateralis

Answer 2

ORIGIN: greater trochanter
INSERTION: tibial tuberosity
ACTION: Extends the knee

Question 3

Vastus intermedius

Answer 3

ORIGIN: anterior surface of the proximal femur
INSERTION: tibial tuberosity
ACTION: Extends the knee

Question 4

Vastus medialis

Answer 4

ORIGIN: linea aspera
INSERTION: tibial tuberosity
ACTION: Extends the knee

Question 5

Sartorius

Answer 5

ORIGIN: anterior superior iliac spine
INSERTION: medial side of the tibia
ACTION: Flexes hip and knee; laterally rotates the hip

Question 6

Iliopsoas

Answer 6

ORIGIN: iliac fossa and lumbar vertebrae
INSERTION: lesser trochanter
ACTION: Flexes hip

Question 7

Tensor fasciae latae

Answer 7

ORIGIN: iliac crest
INSERTION: lateral side of tibia
ACTION: Abducts hip

Question 8

Gracilis

Answer 8

ORIGIN: pubis
INSERTION: medial side of tibia
ACTION: Adducts hip

Question 9

Adductor longus

Answer 9

ORIGIN: pubis
INSERTION: linea aspera
ACTION: Adducts hip

Question 10

Pectineus

Answer 10

ORIGIN: pubis
INSERTION: proximal linea aspera
ACTION: Adducts hip

Question 11

Tibialis anterior

Answer 11

ORIGIN: anterior and lateral surfaces of proximal tibia
INSERTION: 1st metatarsal
ACTION: Dorsiflexion; inversion