Muscle Attachments & Actions Lower Limb

Question 1

Pectineus

Answer 1

• Pubis to lesser trochanter

- Adduction, flexion

Question 2

Psoas Major

Answer 2

• Lumbar to lesser trochanter

- Flex

Question 3

Psoas Minor

Answer 3

• Thoracic to lesser trochanter

- Flex

Question 4

Iliacus

Answer 4

• Iliac crest to lesser trochanter

- Flex

Question 5

Sartorius

Answer 5

• ASIS to medial tibia

- Flex hip and knee, abduction, ER

Question 6

Rectus Femoris

Answer 6

• ASIS to patella

- extend hip, flex knee

Question 7

Vastus lateralis

Answer 7

• Greater trochanter and lateral line aspera to patella

- Extend

Question 8

Vastus Medialis

Answer 8

• Intertrochanteric line and medial linea aspera to patella

- Extend

Question 9

Vastus Intermedialis

Answer 9

• Femur to patella

- Extend

Question 10

Adductor Longus

Answer 10

• Pubis to linea aspera

- Adduct

Question 11

Adductor Brevis

Answer 11

• Pubis to linea aspera

- Adduct

Question 12

Adductor Magnus

Answer 12

• Ischial tuberosity and pubis to linea aspera, adductor tubercle and gluteal tuberosity
• Adduct, extend thigh with hamstrings

Question 13

Gracilis

Answer 13

• Pubis to medial tibia

- Adduct, flex

Question 14

Piriformis

Answer 14

• Sacrum and sacrotuberous ligament to greater trochanter

- ER, Abduction

Question 15

Gemelli, Obturator internus

Answer 15

• Ischium to greater trochanter

- ER, Abd

Question 16

Obturator Externus

Answer 16

• Ob foramen to intertrochanteric line

- ER

Question 17

Quadratus Femoris

Answer 17

• Ischial tuberosity to intertrochanteric crest

- ER

Question 18

Tensor Fascia Lata

Answer 18

• Iliac crest and ASIS to ITB

- Abd, IR

Question 19

Gluteus Maximus

Answer 19

• Gluteal tuberosity and ITB to lateral condyle

- extend, ER

Question 20

Gluteus Medius and Minimus

Answer 20

• Gluteal lines to greater trochanter

- Abd, IR

Question 21

Semitendinosus

Answer 21

• Ischial Tuberosity to medial tibia

- Extend hip, flex knee, IR

Question 22

Semimembranosus

Answer 22

• Ischial Tuberosity to medial tibia

- Extend hip, flex knee, IR

Question 23

Biceps Femoris

Answer 23

• Ischial Tuberosity to lateral fibula

- Extend hip, flex knee, ER

Question 24

Tibialis Anterior

Answer 24

• Lateral tib to 1st MT

- Dorsiflex, Invert

Question 25

Extensor Hallucis longus and Extensor Digitorum longus

Answer 25

• Fibula and interosseous membrane to big toe and toes

- Extend, dorsiflex

Question 26

Fibularis Tertius

Answer 26

• Fibula to 5th MT

- Dorsiflex

Question 27

Fibularis Longus and Brevis

Answer 27

• Fibula to MTs 1 and 5

- Eversion

Question 28

Gastrocnemius

Answer 28

• Femoral condyles to achilles

- Plantarflexion, flexion of knee

Question 29

Soleus

Answer 29

• Fibula to calcaneus

- Plantarflexion

Question 30

Plantaris

Answer 30

• Femur to achilles

- Plantarflexion

Question 31

Popliteus

Answer 31

• Lateral condyle of femur to posterior tibia (medial)

- Unlocks knee

Question 32

Flexor hallucis longus

Answer 32

• Fibula to big toe

- Plantarflexion

Question 33

Tibialis Posterior

Answer 33

• Tibia to foot bones and metatarsals

- Plantatflexion, inversion

Question 34

Flexor Digitorum longus

Answer 34

-Tibia to phalanges

Question 35

Abductor hallucis and abductor digiti minimi

Answer 35

• Calcaneus to respective toes

- Flexion, abduction

Question 36

Flexor digitorum brevis

Answer 36

-calc to middle phalanges

Question 37

Quadratus plantae

Answer 37

• Calcaneus to FDL

- Flexion

Question 38

Extensor hallucis and digitorum brevis

Answer 38

-Sinus tarsi to toes