Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > 34. Posterior Leg and Ankle Joint > Flashcards

34. Posterior Leg and Ankle Joint Flashcards

1
Q

How many muscles are in the posterior compartment of the leg?

A

7

3 superficial
4 deep

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the common insertion of the superficial muscles of the posterior compartment of the leg?

A

Posterior surface of calcaneous via tendocalcaneous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Origin of gastrocnemius?

A

Medial - popliteal surface of femur superior to medial condyle

Lateral - lateral aspect of lateral condyle of femur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Innervation of gastrocnemius?

A

Tibial nerve S1, S2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Action of gastrocnemius?

A

Plantarflex ankle

Flexes knee

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Origin of plantaris?

A

Lateral supracondylar line of femur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Innervation of plantaris?

A

Tibial nerve S1, S2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Action of plantaris?

A

Assists plantarflexion of ankle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Origin of soleus?

A

Soleal line of tibia
Upper 1/3rd posterior fibula
Tendinous arch between bony attachments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Innervation of soleus?

A

Tibial nerve S1, S2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Action of soleus?

A

Plantarflexes ankle joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Origin of popliteus?

A

Lateral condyle of femur

Lateral meniscus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Insertion of popliteus?

A

Popliteal area of tibia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Innervation of popliteus?

A

Tibial nerve L4, L5, S1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Action of popliteus?

A

Unlocks knee joint - laterally rotates the femur on a fixed tibia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Origin of flexor digitorum longus?

A

Posterior surface of tibia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Insertion of flexor digitorum longus?

A

Base of distal phalanx of digits 2-5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Innervation of flexor digitorum longus?

A

Tibial L5, S1, S2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Action of flexor digitorum longus?

A

Flexes lateral 4 digits

Weak plantarflexor of ankle

20
Q

Origin of flexor hallucis longus?

A

Posterior surface of fibula

21
Q

Insertion of flexor hallucis longus?

A

Base of distal phalanx of hallux

22
Q

Innervation of flexor hallucis longus?

A

Tibial nerve L5, S1, S2

23
Q

Action of flexor hallucis longus?

A

Flexes hallux

Weak plantarflexor of ankle

24
Q

Origin of tibialis posterior?

A

Posterior surface of tibia and fibula

Interosseous membrane

25
Q

Insertion of tibialis posterior?

A

Tuberosity of navicular, cuneiforms, cuboid, sustentaculum tali of calcaneous, base of 2nd, 3rd, 4th metatarsals

26
Q

Innervation of tibialis posterior?

A

Tibial nerve L4, L5

27
Q

Action of tibialis posterior?

A

Plantarflexes ankle

Inverts foot

28
Q

Describe the medial to lateral arrangement of tendons at the ankle joint

A

Tibialis posterior
FDL
FHL

(Tom, Dick and Harry)

29
Q

Between which tendons are the posterior tibial vessels and tibial nerve found?

A

Between FDL and FHL

30
Q

What is the terminal branch of the popliteal artery?

A

Posterior tibial (fibular branch then medial and lateral plantar)

31
Q

Describe the course of the posterior tibial artery

A

Between heads of gastrocnemius
Deep to soleus
Surface of TP and FDL

32
Q

Describe the course of the fibular artery?

A

Medial to fibula

Usually within flexor hallucis longus

33
Q

What artery does the tibial nerve run with?

A

Posterior tibial

34
Q

What are the terminal branches of the tibial nerve?

A

Medial and lateral plantar

35
Q

Cutaneous innervation of medial side of posterior leg?

A

Saphenous (from femoral)

36
Q

Cutaneous innervation of lateral side of posterior leg?

A

Sural nerve

37
Q

What type of joint is the inferior tibiofibular joint?

A

Syndesmosis

38
Q

What ligaments make up the inferior tibiofibular joint?

A

Anterior and posterior tibiofibular ligament

Interosseous membrane

39
Q

Movements possible at the inferior tibiofibular joint?

A

SLIGHT movement to accommodate wedging of trochlea of talus during dorsiflexion

40
Q

What does the malleolar mortise articulate with?

A

Trochlea of talus

41
Q

ROM of ankle joint?

A

Dorsiflexion 20-30 degrees

Plantarflexion 30-50

42
Q

Function of the medial and lateral collateral ligaments of ankle?

A

Strong ligaments - support the ankle joint medially and laterally

43
Q

What are the 3 bands of lateral collateral ligament of ankle?

A

Anterior talofibular
Posterior talofibular
Calcaneofibular

44
Q

What is the other name given to the medial collateral ligament?

A

Deltoid

45
Q

What are the 4 parts of the deltoid ligament?

A

Anterior tibiotalar
Tibionavicular
Tibiocalcaneal
Posterior tibiotalar

Anatomy (49 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions