Lower Extremity OIAs pt 2

Question 1

Biceps femoris origin

Answer 1

ischial tuberosity (long head)

lateral lip of the linea aspera of femur (short head)

Question 2

biceps femoris insertion

Answer 2

head of the fibula

Question 3

biceps femoris action and innervation

Answer 3

extends the thigh (only long head) and flexes the leg

tibial division of the sciatic N (long head) and common fibular division of the sciatic n (short head)

Question 4

semitendinosus origin

Answer 4

ischial tuberosity

Question 5

semitendinosus insertion

Answer 5

medial surface of the superior part of the tibia

Question 6

semitendinosus action

Answer 6

extends thigh, flexes and internally rotates the leg

Question 7

semitendinosus innervation

Answer 7

Tibial division of sciatic N

Question 8

semimebranonsus origin

Answer 8

ischial tuberosity

Question 9

semimembranosus insertion

Answer 9

posterior part of the medial condyle of the tibia

Question 10

semimembranosus action

Answer 10

extends the thigh, flexes and internally rotates the leg

Question 11

semimebranosus innervation

Answer 11

tibial division of the sciatic nerve

Question 12

popliteus origin

Answer 12

lateral surface of lateral condyle of femur and lateral meniscus

Question 13

popliteus insertion

Answer 13

posterior surface of tibia superior to soleal line

Question 14

popliteus action

Answer 14

unlocks fully extended leg, weak flexor of leg

Question 15

popliteus innervation

Answer 15

tibial N

Question 16

gastrocnemius origin

Answer 16

superior to the lateral and medial femoral condyles

Question 17

gastroc insertion

Answer 17

posterior surface of calcaneus via calcaneal tendon

Question 18

gastroc actions and innervations

Answer 18

plantarflexes the foot, flexes the knee

Tibial N

Question 19

plantaris origin

Answer 19

lateral supracondylar line of the femur

Question 20

plantaris insertion

Answer 20

posterior surface of calcaneus via calcaneal tendon

Question 21

plantaris action and innervation

Answer 21

platarflexes foot

Tibial N

Question 22

soleus origin

Answer 22

soleal line of the tibia and head of the fibula

Question 23

soleus insertion

Answer 23

posterior surface of calcaneus via calcaneal tendon

Question 24

soleus action and innervation

Answer 24

plantarflexes the foot

Tibial N

Question 25

tibialis posterior insertion

Answer 25

navicular, cuneiform, cuboid and bases of metatarsals 2-4

Question 26

tibialis posterior action and innervation

Answer 26

inverts and plantar flexes the foot

Tibial N

Question 27

Flexor digitorum longus origin

Answer 27

medial part of posterior surface of tibia inferior to soleal line

Question 28

flexor digitorum longus insertion

Answer 28

bases of the distal phalanges of the lateral four toes

Question 29

flexor digitorum longus action and innervation

Answer 29

flexes toes 2-5 and plantarflexes the foot

Tibial N

Question 30

flexor hallucis longus origin

Answer 30

inferior 2/3 of the fibula and interosseous membrane

Question 31

flexor hallucis longus insertion

Answer 31

base of the distal phalanx of the great toe

Question 32

flexor hallucis longus action and innervation

Answer 32

flexes the great toe and plantarflexes the foot

Tibial N

Question 33

Flexor digiti minimi