Lower

Question 1

Gastrocnemius: Origin

Answer 1

Posterior condyles of femur

Question 2

Gastrocnemius: Insertion

Answer 2

Calcaneus via calcaneal tendon

Question 3

Gastrocnemius: Action

Answer 3

1. Flexes the knee
2. Plantar flexes the ankle

Question 4

Soleus: Origin

Answer 4

1. Soleal line
2. Posterior aspect of head of fibula

Question 5

Soleus: Insertion

Answer 5

Calcaneus via calcaneal tendon

Question 6

Soleus: Action

Answer 6

Plantar flexes the ankle

Question 7

Tibialis Anterior: Origin

Answer 7

1. Lateral condyle of tibia
2. Proximal, lateral surface of tibia
3. Interosseous membrane

Question 8

Tibialis Anterior: Insertion

Answer 8

1. Medial cuneiform
2. Base of 1st metatarsal

Question 9

Tibialis Anterior: Action

Answer 9

1. Inverts the foot
2. Dorsiflex the ankle

Question 10

Fibularis/Peroneus Longus: Origin

Answer 10

1. Head of fibula
2. Proximal 2/3 of lateral fibula

Question 11

Fibularis/Peroneus Longus: Insertion

Answer 11

1. Medial cuneiform
2. Base of 1st metatarsal

Question 12

Fibularis/Peroneus Longus: Action

Answer 12

1. Everts the foot
2. Plantar flexes the ankle

Question 13

Piriformis: Origin

Answer 13

Anterior surface of sacrum

Not papable - student should paplate the edge of sacrum

Question 14

Piriformis: Insertion

Answer 14

Greater trochanter

Question 15

Piriformis: Action

Answer 15

1. Laterally rotate the hip
2. Abduct the hip when flexed

Question 16

Gluteus Maximus: Origin

Answer 16

1. Coccyx
2. Edge of sacrum
3. Posterior iliac crest
4. Sacrotuberous and sacroiliac ligaments

Question 17

Gluteus Maximus: Insertion

Answer 17

1. Iliotibial tract/IT band (upper fibers)
2. Gluteal tuberosity (lower fibers)

Question 18

Gluteus Maximus: Action

Answer 18

All fibers:
1. Extends the hip
2. Laterally rotate the hip

Lower fibers:
Adduct the hip

One action for each fiber direction

Question 19

Tensor Fascia Latae (TFL): Origin

Answer 19

Iliac crest just posterior to the ASIS

Question 20

Tensor Fascia Latae (TFL): Insertion

Answer 20

Iliotibial tract/IT band (attaches to the tibial/Gerdy’s tubercle)

Question 21

Tensor Fascia Latae (TFL): Action

Answer 21

1. Flexes the hip
2. Medially rotates the hip
3. Abducts the hip

Question 22

Gluteus Medius: Origin

Answer 22

Gluteal surface of the ilium just below the iliac crest

Question 23

Gluteus Medius: Insertion

Answer 23

Greater trochanter

Question 24

Gluteus Medius: Action

Answer 24

All fibers:
1. Abduct the hip
2. Stabilize the hip

Anterior fibers
1. Flex the hip
2. Medially rotate the hip

Posterior fibers:
1. Extend the hip
2. Laterally rotate the hip

One action for each fiber direction

Question 25

Rectus Femoris: Origin

Answer 25

Anterior inferior iliac spine (AIIS)

Question 26

Rectus Femoris: Insertion

Answer 26

Tibial tuberosity via patella and patellar ligament

Question 27

Rectus Femoris: Action

Answer 27

1. Extends the knee 2. Flexes the hip

Question 28

Biceps Femoris: Origin

Answer 28

Ischial tuberosity

Question 29

Biceps Femoris: Insertion

Answer 29

Head of fibula

Question 30

Biceps Femoris: Action

Answer 30

1. Flexes the knee 2. Extends the hip

Question 31

Vastus Medialis: Origin

Answer 31

Medial lip of linea aspera

Question 32

Vastus Medialis: Insertion

Answer 32

Tibial tuberosity via patella and patellar ligament

Question 33

Vastus Medialis: Action

Answer 33

Extends the knee

Question 34

Vastus Lateralis: Origin

Answer 34

1. Lateral lip of linea aspera 3. Gluteal tubersity 3. Greater trochanter

Question 35

Vastus Lateralis: Insertion

Answer 35

Tibial tuberosity via patella and patellar ligament

Question 36

Vastus Lateralis: Action

Answer 36

Extends the knee

Question 37

Gracilis: Origin

Answer 37

Inferior ramus of pubis | Student must use a barrier

Question 38

Gracilis: Insertion

Answer 38

Pes anserinus tendon

Question 39

Gracilis: Action

Answer 39

1. Adduct the hip 2. Flex the knee

Question 40

Semitendinosus: Origin

Answer 40

Ischial tuberosity

Question 41

Semitendinosus: Insertion

Answer 41

Pes anserinus tendon

Question 42

Semitendinosus: Action

Answer 42

1. Flexes the knee 2. Extends the hip