Muscle Origins And Insertions New

Front 1

Back 1

Muscle: glueteus maximus m.
Insertion: gluteal tuberosity of the posterior surface of the femur;
iliotibial tract of fascia latae
Origin: posterior gluteal line of the ilium
Action: Extends thigh at the hip;
assists in laterally rotating the thigh

Front 2

Insertion: gluteal tuberosity of the posterior surface of the femur;
iliotibial tract of fascia latae
Origin: posterior gluteal line of the ilium
Action: Extends thigh at the hip;
assists in laterally rotating the thigh

Back 2

gluteus maximus m.

Front 3

Back 3

Muscle: gluteus medius m.
Insertion: lateral and superior surfaces of the greater trochanter
Origin: dorsal ilium inferior to iliac crest
Action: major abductor of thigh; anterior fibers help to rotate hip medially; posterior fibers help to rotate hip laterally

Front 4

Insertion: lateral and superior surfaces of the greater trochanter
Origin: dorsal ilium inferior to iliac crest
Action: major abductor of thigh; anterior fibers help to rotate hip medially; posterior fibers help to rotate hip laterally

Back 4

gluteus medius m.

Front 5

Back 5

Muscle: gluteus minimus m.
Insertion: Anterior surface of greater trochanter
Origin: Dorsal ilium
Action: abducts and medially rotates the hip joint

Front 6

Insertion: Anterior surface of greater trochanter
Origin: Dorsal ilium
Action: abducts and medially rotates the hip joint

Back 6

gluteus minimus m.

Front 7

Back 7

Muscle: piriformis m.
Insertion: superior border of the greater trochanter
Origin: anterior sacrum
Action: rotates hip joint laterally

Front 8

Insertion: superior border of the greater trochanter
Origin: anterior sacrum
Action: rotates hip joint laterally

Back 8

piriformis m.

Front 9

Back 9

Muscle: quadratus femoris m.
Insertion: Quadrate tubercle and adjacent bone of intertrochanteric crest of proximal posterior femur
Origin: Lateral margin of obturator ring
Action: Rotates the hip laterally; also helps adduct the hip

Front 10

Insertion: Quadrate tubercle and adjacent bone of intertrochanteric crest of proximal posterior femur
Origin: Lateral margin of obturator ring
Action: Rotates the hip laterally; also helps adduct the hip

Back 10

quadratus femoris m.

Front 11

Back 11

Muscle: iliopsoas m.
Insertion: Lesser trochanter
Origin: iliac fossa
Action: flex the torso and thigh with respect to each other

Front 12

Insertion: Lesser trochanter
Origin: iliac fossa
Action: flex the torso and thigh with respect to each other

Back 12

iliopsoas m.

Front 13

Back 13

Muscle: pectineus m.
Insertion: pectineal line of the femur
Origin: pectineal surface of the pubis
Action: Adducts the thigh

Front 14

Insertion: pectineal line of the femur
Origin: pectineal surface of the pubis
Action: Adducts the thigh

Back 14

pectineus m.

Front 15

Back 15

Muscle: adductor longus m.
Insertion: Middle third of linea aspera
Origin: Anterior surface of body of pubis, just lateral to pubic symphysis
Action: adducts thigh; lateral rotation of hip joint

Front 16

Insertion: Middle third of linea aspera
Origin: Anterior surface of body of pubis, just lateral to pubic symphysis
Action: adducts thigh; lateral rotation of hip joint

Back 16

adductor longus m.

Front 17

Back 17

Muscle: adductor brevis m.
Insertion: superior linea aspera
Origin: Anterior surface of inferior pubic ramus
Action: adducts thigh, laterally rotates thigh

Front 18

Insertion: superior linea aspera
Origin: Anterior surface of inferior pubic ramus
Action: adducts thigh, laterally rotates thigh

Back 18

adductor brevis m.

Front 19

Insertion: superior linea aspera
Origin: Anterior surface of inferior pubic ramus
Action: adducts thigh, laterally rotates thigh

Back 19

adductor brevis m.

Front 20

Back 20

Muscle: adductor magnus m.
Insertion: linea aspera and adductor tubercle
Origin: Inferior pubic ramus
Action: adduction of thigh

Front 21

Insertion: linea aspera and adductor tubercle
Origin: Inferior pubic ramus
Action: adduction of thigh

Back 21

adductor magnus m.

Front 22

Back 22

Muscle: tensor fascia latae
Insertion: iliotibial band
Origin: Anterior superior iliac spine
Action: puts tension on the iliotibial band and stabilizes the hip joint and knee joint

Front 23

Insertion: iliotibial band
Origin: Anterior superior iliac spine
Action: puts tension on the iliotibial band and stabilizes the hip joint and knee joint

Back 23

tensor fascia latae m.

Front 24

Back 24

Muscle: sartorius m.
Insertion: Superior aspect of the medial surface of the tibial shaft
Origin: anterior superior iliac spine
Action: Flexes and laterally rotates the hip joint and flexes the knee

Front 25

Insertion: Superior aspect of the medial surface of the tibial shaft
Origin: anterior superior iliac spine
Action: Flexes and laterally rotates the hip joint and flexes the knee

Back 25

sartorius m.

Front 26

Back 26

Muscle: rectus femoris m.
Insertion: patellar ligament
Origin: anterior inferior iliac spine
Action: Extends the knee

Front 27

Insertion: patellar ligament
Origin: anterior inferior iliac spine
Action: Extends the knee

Back 27

rectus femoris m.

Front 28

Back 28

Muscle: gracilis m.
Insertion: Medial surface of tibial shaft
Origin: Inferior margin of pubic symphysis
Action: Flexes the knee, adducts the thigh, and helps to medially rotate the tibia on the femur

Front 29

Insertion: Medial surface of tibial shaft
Origin: Inferior margin of pubic symphysis
Action: Flexes the knee, adducts the thigh, and helps to medially rotate the tibia on the femur

Back 29

gracilis m.

Front 30

Back 30

Muscle: vastus lateralis
Insertion: Lateral base and border of patella
Origin: anterior and inferior borders of greater trochanter, superior portion linea aspera, and gluteal tuberosity of femur
Action: Extends the knee

Front 31

Insertion: Lateral base and border of patella
Origin: anterior and inferior borders of greater trochanter, superior portion linea aspera, and gluteal tuberosity of femur
Action: Extends the knee

Back 31

vastus lateralis m.

Front 32

Back 32

Muscle: vastus intermedius m.
Insertion: Lateral border of patella; also forms the deep portion of the quadriceps tendon
Action: Extends the knee
Origin: Superior 2/3 of anterior and lateral surfaces of femur;

Front 33

Insertion: Lateral border of patella; also forms the deep portion of the quadriceps tendon
Action: Extends the knee

Back 33

vastus intermedius m.

Front 34

Back 34

Muscle: vastus medialis m.
Insertion: base of patella
Origin: Inferior portion of intertrochanteric line and wraps around to posterior femur all the way down femur
Action: Extends the knee

Front 35

Insertion: base of patella
Origin: Inferior portion of intertrochanteric line and wraps around to posterior femur all the way down femur
Action: Extends the knee

Back 35

vastus medialis m.

Front 36

Back 36

Muscle: semitendinosus m.
Insertion: anterior superior medial tibial shaft
Origin: From common tendon with long head of biceps femoris to ischial tuberosity
Action: Extends the thigh and flexes the knee, and also rotates the tibia medially

Front 37

Insertion: anterior superior medial tibial shaft
Origin: From common tendon with long head of biceps femoris to ischial tuberosity
Action: Extends the thigh and flexes the knee, and also rotates the tibia medially

Back 37

semitendinosus m.

Front 38

Back 38

Muscle: biceps femoris long head m.
Insertion: fibular head
Origin: Common tendon with semitendinosus to the ischial tuberosity
Action: Flexes the knee, and also rotates the tibia laterally; long head also extends the hip joint (same as short head)

Front 39

Insertion: fibular head
Origin: Common tendon with semitendinosus to the ischial tuberosity
Action: Flexes the knee, and also rotates the tibia laterally; long head also extends the hip joint (same as short head)

Back 39

biceps femoris m. long head

Front 40

Back 40

Muscle: biceps femoris m. short head
Insertion: fibular head
Origin: linea aspera
Action: Flexes the knee, and also rotates the tibia laterally; long head also extends the hip joint (same as long head)

Front 41

Insertion: fibular head
Origin: linea aspera
Action: Flexes the knee, and also rotates the tibia laterally; long head also extends the hip joint

Back 41

biceps femoris m. short head

Front 42

Back 42

Muscle: semimembranosus
Insertion: Posterior surface of the medial tibial condyle
Origin: Ischial tuberosity
Action: Extends the thigh, flexes the knee, and also rotates the tibia medially

Front 43

Insertion: Posterior surface of the medial tibial condyle
Origin: Ischial tuberosity
Action: Extends the thigh, flexes the knee, and also rotates the tibia medially

Back 43

semimembranosus m.

Front 44

Back 44

Muscle: tibialis anterior m.
Insertion: Medial and plantar surfaces of 1st cuneiform and on base of first metatarsal
Origin: Lateral condyle of tibia, proximal 1/2 - 2/3 or lateral surface of tibial shaft, interosseous membrane
Action: Dorsiflexor of ankle and invertor of foot

Front 45

Insertion: Medial and plantar surfaces of 1st cuneiform and on base of first metatarsal
Origin: Lateral condyle of tibia, proximal 1/2 - 2/3 or lateral surface of tibial shaft, interosseous membrane
Action: Dorsiflexor of ankle and invertor of foot

Front 46

Back 46

Muscle: tibialis anterior m.
Insertion: Medial and plantar surfaces of 1st cuneiform and on base of first metatarsal
Origin: Lateral condyle of tibia, proximal 1/2 - 2/3 or lateral surface of tibial shaft, interosseous membrane
Action: Dorsiflexor of ankle and invertor of foot

Front 47

Back 47

Muscle: tibialis posterior
Insertion: tuberosity of the navicular bone and sometimes medial cuneiform; deeper slip divides again into slips inserting on plantar surfaces of metatarsals 2 - 4 and second cuneiform
Origin: Posterior aspect of interosseous membrane, superior 2/3 of medial posterior surface of fibula, superior aspect of posterior surface of tibia
Action: Principal invertor of foot; also adducts foot, plantar flexes ankle

Front 48

Insertion: tuberosity of the navicular bone and sometimes medial cuneiform; deeper slip divides again into slips inserting on plantar surfaces of metatarsals 2 - 4 and second cuneiform
Origin: Posterior aspect of interosseous membrane, superior 2/3 of medial posterior surface of fibula, superior aspect of posterior surface of tibia
Action: Principal invertor of foot; also adducts foot, plantar flexes ankle

Back 48

tibialis posterior m.

Front 49

Back 49

Muscle: fibularis (peroneus) brevis m.
Insertion: Lateral surface of styloid process of 5th metatarsal base
Origin: Inferior 2/3 of lateral fibular surface
Action: Everts foot and plantar flexes ankle

Front 50

Insertion: Lateral surface of styloid process of 5th metatarsal base
Origin: Inferior 2/3 of lateral fibular surface
Action: Everts foot and plantar flexes ankle

Back 50

fibularis (peroneus) brevis m.

Front 51

Back 51

Muscle: fibularis (peroneus) longus m.
Insertion: Plantar posterolateral aspect of medial cuneiform and lateral side of 1st metatarsal base
Origin: Head of fibula, upper 1/2 - 2/3 of lateral fibular shaft surface
Action: Everts foot and plantar flexes ankle

Front 52

Insertion: Plantar posterolateral aspect of medial cuneiform and lateral side of 1st metatarsal base
Origin: Head of fibula, upper 1/2 - 2/3 of lateral fibular shaft surface
Action: Everts foot and plantar flexes ankle

Back 52

fibularis (peroneus) longus m.

Front 53

Back 53

Muscle: fibularis (peroneus) tertius m.
Insertion: Dorsal surface of the base of the fifth metatarsal
Origin: medial fibular shaft surface
Action: dorsiflex, evert and abduct the foot

Front 54

Insertion: Dorsal surface of the base of the fifth metatarsal
Origin: medial fibular shaft surface
Action: dorsiflex, evert and abduct the foot

Back 54

fibularis (peroneus) tertius m.

Front 55

Back 55

Muscle: extensor digitorum longus m.
Insertion: Splits into 4 tendon slips after inferior extensor retinaculum, each of which insert on dorsum of middle and distal phalanges as part of extensor expansion complex
Origin: Lateral condyle of fibula, upper 2/3 - 3/4 of medial fibular shaft surface, upper part of interosseous membrane
Action: Extend toes 2 - 5 and dorsiflexes ankle

Front 56

Insertion: Splits into 4 tendon slips after inferior extensor retinaculum, each of which insert on dorsum of middle and distal phalanges as part of extensor expansion complex
Origin: Lateral condyle of fibula, upper 2/3 - 3/4 of medial fibular shaft surface, upper part of interosseous membrane
Action: Extend toes 2 - 5 and dorsiflexes ankle

Back 56

extensor digitorum longus m.

Front 57

Back 57

Muscle: extensor hallucis longus m.
Insertion: distal phalanx
Origin: Anterior surface of the fibula and the adjacent interosseous membrane
Action: Extends great toe and dorsiflexes ankle

Front 58

Insertion: distal phalanx
Origin: Anterior surface of the fibula and the adjacent interosseous membrane
Action: Extends great toe and dorsiflexes ankle

Back 58

extensor hallucis longus m.

Front 59

Back 59

Muscle: flexor digitorum longus m.
Insertion: plantar surface of bases of 2nd - 5th distal phalanges
Origin: Posterior surface of tibia
Action: Flexes toes 2 - 5; also helps in plantar flexion of ankle

Front 60

Insertion: plantar surface of bases of 2nd - 5th distal phalanges
Origin: Posterior surface of tibia
Action: Flexes toes 2 - 5; also helps in plantar flexion of ankle

Back 60

flexor digitorum longus m.

Front 61

Back 61

Muscle: flexor hallucis longus m.
Insertion: Plantar surface of base of distal phalanx of great toe
Origin: Inferior 2/3 of posterior surface of fibula, lower part of interosseous membrane
Action: Flexes great toe, helps to supinate ankle

Front 62

Insertion: Plantar surface of base of distal phalanx of great toe
Origin: Inferior 2/3 of posterior surface of fibula, lower part of interosseous membrane
Action: Flexes great toe, helps to supinate ankle

Back 62

flexor hallucis longus m.

Front 63

Back 63

Muscle: gastrocnemius m.
Insertion: The two heads unite into a broad aponeurosis which eventually unites with the deep tendon of the soleus to form the Achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface
Origin: Medial head from posterior nonarticular surface of medial femoral condyle; Lateral head from lateral surface of femoral lateral condyle
Action: plantar flexor of ankle

Front 64

Insertion: The two heads unite into a broad aponeurosis which eventually unites with the deep tendon of the soleus to form the Achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface
Origin: Medial head from posterior nonarticular surface of medial femoral condyle; Lateral head from lateral surface of femoral lateral condyle
Action: plantar flexor of ankle

Back 64

gastrocnemius m.

Front 65

Back 65

Muscle: soleus m.
Insertion: Eventually unites with the gastrocnemius aponeurosis to form the Achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface
Origin: Posterior aspect of fibular head, upper 1/4 - 1/3 of posterior surface of fibula, middle 1/3 of medial border of tibial shaft, and from posterior surface of a tendinous arch spanning the two sites of bone origin
Action: plantar flexor of ankle

Front 66

Insertion: Eventually unites with the gastrocnemius aponeurosis to form the Achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface
Origin: Posterior aspect of fibular head, upper 1/4 - 1/3 of posterior surface of fibula, middle 1/3 of medial border of tibial shaft, and from posterior surface of a tendinous arch spanning the two sites of bone origin
Action: plantar flexor of ankle

Back 66

soleus m.

Front 67

Back 67

Muscle: plantaris
Insertion: Middle 1/3 of the posterior calcaneal surface, just medial to Achilles tendon
Origin: Inferior aspect of lateral supracondylar line of distal femur
Action: Plantar flexor of ankle; also flexes knee

Front 68

Insertion: Middle 1/3 of the posterior calcaneal surface, just medial to Achilles tendon
Origin: Inferior aspect of lateral supracondylar line of distal femur
Action: Plantar flexor of ankle; also flexes knee

Back 68

plantaris m.

Front 69

Back 69

Muscle: popliteus m.
Insertion: Posterior surface of tibia in a fan-like fashion, just superior to the popliteal line
Origin: Anterior part of the popliteal groove on lateral surface of lateral femoral condyle
Action: Rotates knee medially

Front 70

Insertion: Posterior surface of tibia in a fan-like fashion, just superior to the popliteal line
Origin: Anterior part of the popliteal groove on lateral surface of lateral femoral condyle
Action: Rotates knee medially

Back 70

popliteus m.