posterior group of leg muscles

Question 1

name superficial layer muscles

Answer 1

1) triceps surae
- soleus
-Gastrocnemius
2)Plantaris

Question 2

name deep layer muscles

Answer 2

1) Tibial posterior
2)Popliteus
3)Flexor hallicus longus
4) Flexor digitorum longus

Question 3

Origin of Gastrocnemius

Answer 3

1) Lateral head- lateral condyle of the femur (external supracondylar tubercle)
2) Medial head-medial condyle of femur (internal supracondylar tubercle)

Question 4

Insertion of Gastrocnemius

Answer 4

Calcaneal tuberosity via Achilles heel

Question 5

Movement of Gastrocnemius

Answer 5

plantar flexion of leg and foot
flexion at knee joint

Question 6

Innervation of Gastrocnemius

Answer 6

tibial nerve

Question 7

Origin of soleus

Answer 7

tibia- soleal line
fibula- head of fibula

Question 8

insertion of soleus

Answer 8

calcaneal tuberosity

Question 9

movement of soleus

Answer 9

plantar flexion of foot

Question 10

innervation of soleus

Answer 10

tibial nerve

Question 11

origin of plantaris

Answer 11

lateral supracondylar line

Question 12

insertion of plantaris

Answer 12

calcaneal tuberosity

Question 13

movement of plantaris

Answer 13

plantar flexion of leg and foot
flexion at knee joint

Question 14

innervation of plantaris

Answer 14

tibial nerve

Question 15

origin of tibial posterior

Answer 15

tibia and fibula-posterior surface
interosseus membrane

Question 16

innervation of tibial posterior

Answer 16

medical cuneiform-plantar surface
navicular- tuberosity of navicular

Question 17

insertion of tibial posterior

Answer 17

tibial nerve

Question 18

movement of tibial posterior

Answer 18

plantar flexion
supination and adduction of foot

Question 19

origin of flexor digitorum longus

Answer 19

tibia- posterior surface (distal)
interosseus membrane of leg

Question 20

innervation of flexor digitorum longus

Answer 20

tibial nerve

Question 21

insertion of flexor digitorum longus

Answer 21

four tendons (bases of distal phalanges) for 2th-5th toes

Question 22

movement of flexor digitorum longus

Answer 22

flexion of toes at metatarsophalangeal joints, proximal and distal interphalangeal joint
supination and adduction of the foot
helps to hold longitudinal arch of foot

Question 23

origin of flexor hallicus longus

Answer 23

fibula-posterior surface (distal)
interosseous membrane of leg

Question 24

innervation of flexor hallicus longus

Answer 24

tibial nerve

Question 25

insertion of flexor hallicus longus

Answer 25

base of distal phalanx of big toe

Question 26

movement of flexor hallicus longus

Answer 26

flexion of big toe at metatarsophalangeal joints and interphalangeal joint
supination and adduction of the foot (inversion of foot)
helps to hold longitudinal arch of foot

Question 27

origin of popliteus

Answer 27

femur-lateral condyle (groove for popliteus)

Question 28

insertion of popliteus

Answer 28

posterior surface (above soleal line)

Question 29

movement of popliteus

Answer 29

flexion of leg (unlocks knee joint)
Internal rotation of the flexed leg
Influences the movements of lateral meniscus of knee joint

Question 30

Innervation of popliteus

Answer 30

sciatic nerve (tibial branch