Anterior Thigh Muscles

Question 1

Rectus Femoris Origin and Insertion

Answer 1

Origin- AIIS

Insertion- Tibial Tuberosity

Question 2

Rectus Femoris Action

Answer 2

Flex the hip; Extend the knee

Question 3

Vastus Lateralis Origin and Insertion

Answer 3

Origin- Lateral lip of Linea aspera, Gluteal tuberosity and greater trochanter

Insertion- Tibial Tuberosity

Question 4

Vastus Lateralis Action

Answer 4

Extend the knee

Question 5

Vastus Medialis origin and insertion

Answer 5

Origin- Medial lip of Linda aspera

Insertion- Tibial Tuberosity

Question 6

Vastus Medialis Action

Answer 6

Extend the knee

Question 7

Vastus Intermedius origin and Insertion

Answer 7

Origin- Anterior and lateral shaft of femur

Insertion- Tibial Tuberosity

Question 8

Vastus Intermedius Action

Answer 8

Extend the knee

Question 9

Sartorius origin and insertion

Answer 9

Origin- ASIS

Insertion- Proximal, medial shaft of Tibia at pets anserinus tendon

Question 10

Sartorius Action

Answer 10

Flex, laterally rotate and abduct the hip; Flex and medially rotate the flexed knee

Question 11

Tensor Fascia Latae origin and insertion

Answer 11

Origin- Iliac crest, posterior to ASIS

Insertion- Iliotibial Tract

Question 12

Tensor Fascia Latae Action

Answer 12

Flex, medially rotate and abduct the hip

Question 13

Pectineus origin and insertion

Answer 13

Origin- Superior ramus of pubis

Insertion- Pectineal line of femur

Question 14

Pectineus Action

Answer 14

Adduct and medially rotate the hip; assist to flex the hip

Question 15

Adductor Longus origin and insertion

Answer 15

Origin- Pubic Tubercle

Insertion- Medial lip of Linda aspera

Question 16

Adductor Longus Action

Answer 16

Adduct and medially rotate the hip; assist to flex the hip

Question 17

Adductor Brevis origin and insertion

Answer 17

Origin- Inferior ramus of pubis

Insertion- Pectineal line and medial lip of Linea aspera

Question 18

Adductor Brevis Action

Answer 18

Adduct and medially rotate the hip; assist to flex the hip

Question 19

Adductor Magnus origin and insertion

Answer 19

origin- Inferior ramus of the pubis, ramus of ischium and ischial tuberosity

Insertion- Medial lip of linea aspera and adductor tubercle

Question 20

Adductor Magnus Action

Answer 20

Adduct and medially rotate the hip; assist to flex the hip

Posterior fibers: Extend the hip

Question 21

Gracilis origin and insertion

Answer 21

Origin- Inferior ramus of pubis

Insertion- Proximal, medial shaft of tibia at pets anserinus tendon

Question 22

Gracilis Action

Answer 22

Adduct and medially rotate the hip; Flex the knee; medically rotate the flexed knee