Posterior Lower Limb

Question 1

What is the action of the biceps femoris?

Answer 1

Extends thigh and flexes leg

Question 1

What is the blood supply to the tibialis posterior?

Answer 1

Posterior tibial artery

Question 2

What is the action of the semimembranosus?

Answer 2

Extend thigh and flex leg

Question 3

What is the action of the gastrocnemius?

Answer 3

Plantarflexes foot

Question 3

What is the innervation of the flexor hallucis longus?

Answer 3

Tibial nerve (S2,3)

Question 4

What is the pes anserinus?

Answer 4

Anatomic name for three conjoined tendons on the medial aspect of the knee. Sartorius, gracilis, and semitendinosus

Question 5

What is the distal attachment of the tibialis posterior?

Answer 5

Plantar surface of several tarsals

Question 6

What is the blood supply to the plantaris?

Answer 6

Posterior tibial artery

Question 6

What is the distal attachment of the popliteus?

Answer 6

Posterior surface of the proximal tibia

Question 7

What is the action of the soleus?

Answer 7

Plantarflexes foor

Question 7

What is the distal attachment of the flexor digitorum longus?

Answer 7

Bases of distal phalanges of lateral four digits

Question 9

What is the blood supply to the semitendonosus?

Answer 9

Muscular branches of the profunda femoris perforating arteries

Question 9

What is the blood supply to the popliteus?

Answer 9

Posterior tibial artery

Question 10

What is the innervation of the gastrocnemius?

Answer 10

Tibial nerve (S1,2)

Question 10

What is the proximal attachment of the plantaris?

Answer 10

Lateral supracondylar line of femur

Question 11

What is the proximal attachment of the flexor hallucis longus?

Answer 11

Posterior surface of the fibula

Question 12

What is the distal attachment of the plantaris?

Answer 12

Calcaneal tendon

Question 13

What is the distal attachment of the semimembranosus?

Answer 13

Posterior part of the medial condyle of the tibia

Question 14

What is the blood supply of the soleus?

Answer 14

Posterior tibial artery

Question 15

What is the innervation of the semitendonosus?

Answer 15

Tibial division of the sciatic nerve (L5,S1,2)

Question 15

What is the action of the plantaris?

Answer 15

Plantarflexes ankle

Question 16

What is the innervation of the biceps femoris?

Answer 16

Long head: tibial division of the sciatic nerve Short head: common fibular diversion of the sciatic nerve

Question 16

What is the action of the flexor digitorum longus?

Answer 16

Flexes lateral four digits and plantarflexes foot

Question 17

What is the innervation of the flexor digitorum longus?

Answer 17

Tibial nerve (S2,3)

Question 18

What is the proximal attachment of the popliteus?

Answer 18

Lateral condyle of femur

Question 19

What is the action of the popliteus?

Answer 19

Weakly flexes knee and unlocks it by rotating femur on fixed tibia and medially rotates tibia of unplanted limb

Question 20

What is the innervation of the popliteus?

Answer 20

Tibial nerve (L4,5,S1)

Question 21

What is the distal attachment of the flexor hallucis longus?

Answer 21

Base of distal phalanx of great toe (hallux)

Question 21

What is the action of the tibialis posterior?

Answer 21

Plantarflexes and inverts foot

Question 22

What is the blood supply to the flexor hallucis longus?

Answer 22

Posterior tibial artery

Question 23

What is the action of the flexor hallucis longus?

Answer 23

Flexes great toe and plantarflexes foot

Question 25

What is the proximal attachment of the gastrocnemius?

Answer 25

Lateral head: lateral condyle of femur Medial head: medial condyle of femur

Question 26

What is the blood supply to the flexor digitorum longus?

Answer 26

Posterior tibial artery

Question 28

What is the blood supply of the gastrocnemius?

Answer 28

Posterior tibial artery

Question 30

What is the innervation of the semimembranosus?

Answer 30

Tibial division of the sciatic nerve (L5,S1,2)

Question 32

What is the distal attachment of the biceps femoris?

Answer 32

Head of the fibula

Question 33

What is the distal attachment of the semitendonosus?

Answer 33

Medial surface of the superior part of tibia

Question 35

What is the proximal attachment of the semitendonosus?

Answer 35

Ischial tuberosity

Question 36

What is the innervation of the tibialis posterior?

Answer 36

Tibial nerve (L4,5)

Question 38

What is the distal attachment of the gastrocnemius?

Answer 38

Calcaneal tuberosity via the calcaneal tendon

Question 40

What is the blood supply to the semimembranosus?

Answer 40

Muscular branches of the profunda femoris perforating arteries

Question 42

What is the proximal attachment of the soleus?

Answer 42

Soleal line and head of fibula

Question 43

What is the proximal attachment of the tibialis posterior?

Answer 43

Posterior surface of tibia and fibula

Question 44

What is the proximal attachment of the flexor digitorum longus?

Answer 44

Posterior surface of tibia

Question 45

What is the distal attachment of the soleus?

Answer 45

Calcaneal tendon

Question 46

What is the proximal attachment of the semimembranosus?

Answer 46

Ischial tuberosity

Question 47

What is the innervation of the plantaris?

Answer 47

Tibial nerve (S1,2)

Question 48

What is the action of the semitendonosus muscle?

Answer 48

Extends thigh and flexes leg

Question 49

What is the proximal attachment of the biceps femoris?

Answer 49

Long head: ischial tuberosity Short head: linea aspera

Question 50

What is the innervation of the soleus?

Answer 50

Tibial nerve (S1,2)

Question 51

What is the blood supply of the biceps femoris?

Answer 51

Muscular branches of profunda femoris perforating arteries