Muscles of Lower Limb Flashcards Preview

Musculoskeletal (MEDI) 203 > Muscles of Lower Limb > Flashcards

Flashcards in Muscles of Lower Limb Deck (37):
1

Superficial muscles of posterior compartment of leg.

Gastrocnemius
Soleus
Plantaris

2

Deep muscles of posterior compartment of leg.

Popliteus
Tibialis posterior
Flexor hallucis longus
Flexor digitorum longus

3

Muscles of lateral compartment of leg

Peroneus longus & brevis

4

Muscles of anterior compartment of leg

Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
____________

5

Innervation of gastrocnemius

Tibial nerve

6

Action of gastrocnemius

Plantarflexion of foot (at ankle joint)
Flex leg (at knee)

7

Innervation of plantaris

Tibial nerve

8

Action of plantaris

Plantarflexion of foot (at ankle joint) [weak]
Flex leg (at knee)

9

Innervation of soleus

Tibial nerve

10

Action of soleus

Plantarflexion of foot (at ankle joint)
NB: DOESN'T cross knee, so doesn't influence it.

11

Which compartment does soleus belong to?

Posterior compartment of leg

12

Which compartment does plantaris belong to?

Posterior compartment of leg

13

Which compartment does gastrocnemius belong to?

Posterior compartment of leg

14

Which compartment does gastrocnemius belong to?

Posterior compartment of leg

15

Innervation of popliteus

Tibial nerve

16

Action of popliteus

Stabilise knee joint
Unlock knee joint (lateral rotation of femur)
Weak flexor of knee

17

Innervation of flexor hallucis longus

Tibial nerve

18

Action of flexor hallucis longus

Flexes big toe

19

Innervation of flexor digitorum longus

Tibial nerve

20

Action of flexor digitorum longus

Flexes 4 lateral toes

21

Innervation of tibialis posterior

Tibial nerve

22

Action of tibialis posterior

Inversion of foot
Plantarflexion of foot
Supports medial arch of foot

23

Contents of tarsal tunnel

Tibialis posterior
Flexor digitorum longus
Flexor hallucis longus
____ nerve...

24

Innervation of fibularis longus

Superficial fibular nerve

25

Action of fibularis longus

Eversion of foot
Plantarflexion of foot
Supports arches

26

Innervation of fibularis brevis

Superficial fibular nerve

27

Action of fibularis brevis

Eversion of foot

28

Innervation of lateral compartment of leg

Superficial fibular nerve

29

Innervation of tibialis anterior

Deep fibular nerve

30

Action of tibialis anterior

Dorsiflexion of foot
Inversion of foot
Support of medial plantar arch

31

Innervation of anterior compartment of leg

Deep fibular nerve

32

Innervation of extensor hallucis longus

Deep fibular nerve

33

Action of extensor hallucis longus

Extension of big toe
Dorsiflexion of foot

34

Innervation of extensor digitorum longus

Deep fibular nerve

35

Action of extensor digitorum longus

Extension of lateral 4 toes
Dorsiflexion of foot

36

Innervation of fibularis tertius

Deep fibular nerve

37

Action of fibularis tertius

Dorsiflexion of foot
Eversion of foot