03 Leg and Ankle Flashcards Preview

7202 Anatomy > 03 Leg and Ankle > Flashcards

Flashcards in 03 Leg and Ankle Deck (31):
1

3 compartments of the leg

- anterior
- posterior
- lateral

2

What muscle group is in the anterior compartment?

ankle dorsiflexors

3

What nerve supplies the anterior compartment of the leg?

deep peroneal n.

4

Which muscle group is in the posterior compartment?

- ankle and toe plantarflexors
- foot inverters (supinators)

5

What nerve supplies the posterior compartment of the leg?

tibial n.

6

Which muscle group is in the lateral compartment?

ankle everters (pronators)

7

What nerve supplies the posterior compartment of the leg?

superficial peroneal

8

What are the branches of the sciatic nerve?

- deep peroneal
- tibial
- superficial fibular

9

What does the distal tibiofibular joint permit?

some movement at the ankle

10

compartment syndrome

fluid builds up within a compartment and put compression on the NV structures

11

mortis

general architectural term that describes the articulation of the tib/fib joint and the ankle

12

function of the fibula

- dissipates force to the tibia during walking
- flexes

13

What type of joint is the distal tib-fib joint?

- syndesmosis
- fibrous joint, very little (if any) motion

14

high ankle sprain

injury to the distal tib-fib joint

15

What is the name of the ankle joint?

talocrural joint

16

Which is further anterior? Tibia or fibula?

tibia

17

close packed position of the ankle

complete dorsiflexion

18

The (anterior/posterior) portion of the dome of the talus is bigger

anterior

19

What happens to the talus, tibia, and fibula during dorsiflexion?

- talus slides backward
- tibia and fibula spread apart a little

20

Why do the tibia and fibula spread apart during dorsiflexion?

because the dome of the talus is wider in the front and pushes against them

21

Where do dorsiflexion and plantarflexion occur?

talocrural joint

22

deltoid ligament

collection of 5 ligaments on the medial aspect of the ankle

23

spring ligament

plantar calcaneonavicular ligament

24

long plantar ligament

connects medial calcaneal tubercle to the plantar fascia and metatarsals

25

primary functions of spring and long plantar ligaments

support for the medial arch

26

6 ligaments on the

- anterior tibiofibular
- posterior tibiofibular
- anterior talofibular
- posterior talofibular
- calcaneofibular
- bifurcated ligament

27

Which muscles are in the superficial posterior compartment?

- gastrocs
- soleus

28

How and where do the gastrocs and soleus attach?

- calcaneus
- via the achilles tendon

29

Which muscle group is in the deep posterior compartment?

- toe flexors
- inverters

30

Where does the soleus attach proximally?

- posterior tibia and fibula
- along an inverted U just inferior to popliteus

31

start at slide 15, lazy

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