Lower limb muscles, origin n insertions

Question 1

psoas major muscle

Answer 1

originates from bodies of vertebrae at T12-L4, and costal processes L1-L5
Inserts at lesser trochanter of femur

Flexes thigh

Question 2

Iliacus muscle

Answer 2

originates at iliac fossa
Inserts at lesser trochanter of femur
Flexes thigh

Question 3

Glute max

Answer 3

originates surface of ilium and posterior inferior surface of sacrum and coccyx
Inserts at gluteal tuberosity of femur and iliotibial tract
Extension abduction and rotation

Question 4

glute medius and min

Answer 4

originates at gluteal surface of ilium
Inserts at greater trochanter
Extension, abduction and rotation

Question 5

Tensor Fasciae latae

Answer 5

originates at anterior superior iliac spine
Inserts at Iliotibial tract (IT band)
Extension, abduction and rotation

Question 6

Piriformous

Answer 6

originates at pelvic surface of sacrum
inserts at greater trochanter
Lateral rotation of thigh

Question 7

Sartorius (longest)

Answer 7

originates at anterior superior iliac spine
Inserts at medial surface of tibia
Flexion of thigh and knee. Medial rotation of knee
Abduction and lateral rotation of thigh and knee

Question 8

Rectus femoris ( most anterior)

Answer 8

Originates at anterior inferior iliac spine
Inserts at Quadriceps tendon
Extension of leg at knee joint
Flexion of thigh at hip joint

Question 9

Vastus lateralis (lateral)

Answer 9

originates from Linea aspera femoris and greater trochanter
Inserts at Quadriceps tendon
Extension of leg at knee joint
Flexion of thigh at hip joint

Question 10

Vastus intermedius

Answer 10

Originates from shaft of the femur
Inserts at Quad tendon
Extension of leg at knee joint

Question 11

Vastus medialis

Answer 11

Originates from linea aspera femoris and Intertrochantic line
Inserts at Quad tendon
Extension of leg at knee joint
Flexion of thigh at hip joint

Question 12

Obturator externus muscle

Answer 12

Originates at Obturator foramen
Inserts at trochanteric fossa

Question 13

Pectineus

Answer 13

Originates at pectineal line of pubic bone and Iliopubic eminence
Inserts at linea aspera femoris and pectineal line of femur

Question 14

Gracilis

Answer 14

Originates at inferior pubic ramus
Inserts at proximal surface of tibia

Question 15

Adductor brevis

Answer 15

Originates at inferior pubic ramus
Inserts at linea aspera femoris
Adduction, flexion and extension

Question 16

Adductor longus

Answer 16

Originates at pubic symphysis and superior pubic ramus
Inserts at linea aspera femoris
Adduction, flexion and extension

Question 17

Adductor magnus

Answer 17

Originates at inferior pubic ramus, ramus of ischium and ischial tuberosity
Inserts at linea aspera femoris and adductor tubercle
Adduction, flexion and extension

Question 18

Adductor minimus

Answer 18

Originates at inferior pubis ramus
Inserts at linea aspera femoris
Adduction, Flexion and extension

Question 19

Bicep femoris

Answer 19

Originates at sacrotuberous ligament, linea aspera femoris and ischial tuberosity
Inserts at head of fibula
Flexion of leg at knee and extension at hip

Question 20

Semitendinosus

Answer 20

Originates at Ischial tuberosity and Sacrotuberous ligament
Inserts at Proximal tibia
Flexion of leg at knee and extension at hip

Question 21

Semi membranosus

Answer 21

Originates at Ischial tuberosity
Inserts at medial condyle of tibia and oblique popliteal ligament
Flexion of leg at knee and extension at hip

Question 22

Tibialis anterior

Answer 22

Originates at lateral surface of tibia, lateral condyle of tibia and interosseous membrane
Inserts at base of metatarsal of hallux and surface of medial cuneiform
Dorsi and plantar flexion, Inversion

Question 23

Extensor digitorum longus

Answer 23

Originates at lateral condyle of tibia, head of fib and interosseous membrane
Inserts at middle and distal phalanges of 4 toes
Dorsi flextion and extension,
eversion

Question 24

Extensor hallucis longus

Answer 24

Originates at medial surface of fib and interosseous membrane
Inserts at base of hallux
Dorsi and extension of big toe

Question 25

Fibularis longus

Answer 25

Originates at head of fib, and lateral surface
Inserts at base of hallux and medial cuneiform
Eversion and plantar flexion

Question 26

Fibularis brevis

Answer 26

Originates at lateral surface of fib
Inserts at metatarsal of lil toe
Plantar and eversion

Question 27

Superior and inferior fibula retinaculum

Answer 27

lateral malleolus to calcaneus

Question 28

Gastrocnemius

Answer 28

Lateral head originates from lateral epicondyle of femur, medial head other
Inserts at calcaneal tuberosity
Plantar and flexion

Question 29

Plantaris

Answer 29

Originates at lateral supracondylar line of femur
Inserts at calcaneal tuberosity
Plantar and flexion

Question 30

Soleus

Answer 30

Originates at head of fib, posterior border of fib and soleal line of tibia
Inserts at calcaneal tuberosity
Plantar flexion

Question 31

Popliteus

Answer 31

Originates at lateral condyle and lateral meniscus
Inserts at posterior surface of tibia
Lateral rotation of femur, flexion and medial rotation

Question 32

Flexor digitorum longus

Answer 32

Originates at posterior surface of tibia
Inserts at base of distal phalanges of 4 toes
Plantar and flexion and inversion

Question 33

flexor hallucis longus

Answer 33

Originates at posterior surface of fibula and interosseus membrane
Inserts at base of distal big toe
Plantar and flexion and inversion

Question 34

Tibialis posterior

Answer 34

Originates at posterior surface of tib and fib and interosseus membrane
Inserts at tuberosity of navicular bone and 3 cuneiforms
Plantar and inversion