Posterior Compartment of the Leg Flashcards Preview

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Flashcards in Posterior Compartment of the Leg Deck (25):
1

msucles in superficial posterior leg

collectively+where they are in relation to each other

individually-whats differece

triceps surae
-gastro most superficial (on top of other two)
-plantaris is medial
-soleous is lateral

gastrocnemius-two heads

soleus-can be seen more inferiorly as gastro narrows

plantaris-long thin tendon

2

gastrocnemius attachments

medial and lateral epicondyles of femur

calcaneal tuberosity via achilles tendon

3

gastrocnemius innervation

tibial nerve s1,2

4

gastrocnemius actions

flex letg at knee joint

plantar flex food at talocrural joint

5

soleus attachments

posterior surface of head and neck of fibula and solid line of tibia

calcaneal tuberosity via achilles tendon

6

soleus innervation

tibial nerve s1,2

7

soleus actions

plantar flex and food at talocrural joint

flex let at knee joint

8

plantaris attachments

lateral epicondyle

calcaneal tuberosity via achilles tendon

9

plantaris innervation

tibial nerve s1,2

10

plantaris actions

dont do fucking shit

11

tendocalcaneous

what does

where attach

achilles tendon

distal attachment of triceps surae

attaches to calcaneus

12

popliteus msucle

where attach

what does contraction do

where does tendon go

between tibia and lateral aspect of lateral femoral condyle

rotates femur on fixed tibia to unlock knee

courses medial to lateral collateral ligament of knee

13

deep posterior compartment muscles

what they look like in relation to each other

flexor hallucis longus-most medial

tibialis posterior-most superior

flexor digitorum longus-most lateral

14

flexor hallucis longus attachments

posterior two thirds of fibula

base of 1st distal phalanx

15

flexor hallucis longus innervation

tibial nerve l5-s2

16

flexor hallucis longus actions

flex foot at talocrural joint

invert food at subtler going

plantar flex 1st toe at MTP and IP joints

supports medial food of arch

17

tibialis posterior attachments

interosseous membrane and adjacent borders of tibia and tibia

navicular tuberosity, medial , intermediate, and lateral cuneiform bones

bases of 2nd and 4th metatarsals

18

tibialis posterior innervation

tibial nerv l4,5

19

tibialis posterior actions

plantar flex the food at talocrural joint

invert food at subtler joint

support longitudinal and transverse arches of foot

20

flexor digitorum longus attachments

posterior surface of middle third of tibia

base of distal phanalges of 2nd to 5th digits

21

flexor digitorum longus innervation

tibial nerve

l5-s2

22

flexor digitorum longus actions

plantar flex foot at talocrural joint

invert food at subtler joint

plantar flex 2nd to 5th toes and MTP and IP jints

23

what do anterior and posterior tibial arteries come from

what are thier pathways

what about tibial nerve

popliteal artery

ant-passes thorugh superior deficiency in interosseous membrane to enter anterior compartment of leg

post-results in fibular artery branch

tibial nerve enters sole of foot with post artery by going under medial malleolus-kept in place by flexor retinaculum

24

flexor retinaculum

transversely oriented fascial thickening extending posteriorly from medial malleolus

straps down plantar flexor tendons
-[;ace where deep posterior compartment muscles' tendons enter plantar surface offoot

25

stuff in the flexorretinaculum 5

tendon of tibias posterior

tendon of flexor digitorum longs

tendon of flexor hallucis longs

postreior tibial artery

poseteior tibial nerve