Origins And Insertions Of Lower Musculature

Question 1

What is the origin and insertion of the iliacus?

Answer 1

Origin: iliac fossa

Insertion: lesser trochanter of femur

Question 2

What is the origin and insertion of the psoas major?

Answer 2

Origin: lateral bodies and TP of T12-L5

Insertion: lesser trochanter of femur

Question 3

What is the origin and insertion of the tensor fascia latae?

Answer 3

Origin: iliac crest; ASIS

Insertion: iliotibial band

Question 4

What is the origin and insertion of the sartorius?

Answer 4

Origin: ASIS

Insertion: proximal medial shaft of tibia

Question 5

What is the origin and insertion of the gluteus maximus?

Answer 5

Origin: iliac crest; sacrum and coccyx

Insertion: IT band, gluteal tuberosity of femur

Question 6

What is the origin and insertion of the gluteus medius?

Answer 6

Origin: lateral surface of ilium

Insertion: greater trochanter of femur

Question 7

What is the origin and insertion of the gluteus minimus?

Answer 7

Origin: lateral surface of ilium

Insertion: greater trochanter of femur

Question 8

What is the origin and insertion of the pectineus?

Answer 8

Origin: pectineal line of pubis

Insertion: pectineal line of femur

Question 9

What is the origin and insertion of the adductor longus?

Answer 9

Origin: body of pubis

Insertion: middle 1/3 linea aspera of femur

Question 10

What is the origin and insertion of the adductor brevis?

Answer 10

Origin: body and inferior ramus of pubis

Insertion: proximal 1/3 linea aspera of femur

Question 11

What is the origin and insertion of the adductor magnus?

Answer 11

Origin: inferior ramus of pubis; ramus and tuberosity of ischium

Insertion:
- Adductor part: linea aspera
- Hamstring part: adductor tubercle and medial epicondyle

Question 12

What is the origin and insertion of the gracilis?

Answer 12

Origin: body and inferior ramus of pubis

Insertion: proximal medial shaft of tibia

Question 13

What is the origin and insertion of the rectus femoris?

Answer 13

Origin: AIIS

Insertion: tibial tuberosity

Question 14

What is the origin and insertion of the vastus lateralis?

Answer 14

Origin: greater trochanter and linea aspera

Insertion: tibial tuberosity

Question 15

What is the origin and insertion of the vastus intermedius?

Answer 15

Origin: anteriolateral surface of femur

Insertion: tibial tuberosity

Question 16

What is the origin and insertion of the vastus medialis?

Answer 16

Origin: intertrochanteric line (anterior) and linea aspera

Insertion: tibial tuberosity

Question 17

What is the origin and insertion of the biceps femoris?

Answer 17

Origin:
- long head: ischial tuberosity
- short head: linea aspera

Insertion: head of fibula

Question 18

What is the origin and insertion of the semitendinosus?

Answer 18

Origin: ischial tuberosity

Insertion: proximal medial shaft of tibia

Question 19

What is the origin and insertion of the semimembranosus?

Answer 19

Origin: ischial tuberosity

Insertion: posterior surface of medial tibial condyle

Question 20

What is the insertion of the tibialis anterior?

Answer 20

Insertion: medial cuneiform & base of 1st metatarsal

Question 21

What is the insertion of the extensor digitorum longus?

Answer 21

Insertion: middle and distal phalanges digits 2-5

Question 22

What is the insertion of the extensor hallicus longus?

Answer 22

Insertion: base of distal phalanx of hallux

Question 23

What is the insertion of the fibularis tertius?

Answer 23

Insertion: base of 5th metatarsal

Question 24

What is the insertion of the fibularis brevis?

Answer 24

Insertion: base of the 5th metatarsal

Question 25

What is the insertion of the fibularis longus?

Answer 25

Insertion: base of 1st metatarsal and medial cuneiform

Question 26

What is the insertion of the gastrocnemius?

Answer 26

Insertion: calcaneus

Question 27

What is the insertion of the soleus?

Answer 27

Insertion: calcaneus

Question 28

What is the insertion of the plantaris?

Answer 28

Insertion: calcaneus

Question 29

What is the insertion of the popliteus?

Answer 29

Insertion: posterior proximal tibia

Question 30

What is the insertion of the tibialis posterior?

Answer 30

Insertion: navicular, all cuneiform, cuboid, base of MT 2-4

Question 31

What is the insertion of the flexor digitorum longus

Answer 31

Insertion: distal phalanges digits 2-5

Question 32

What is the insertion of the flexor hallicus longus?

Answer 32

Insertion: distal phalanx of hallux

Question 33

Answer 33

A: piriformis B: superior gemellus C: obturator internus D: inferior gemellus E: quadratus femoris

Question 34

Answer 34

A: superior extensor retinaculum B: inferior extensor retinaculum

Question 35

Answer 35

A: flexor retinaculum

Question 36

Answer 36

A: superior peroneal retinaculum B: inferior peroneal retinaculum