Brainscape's Knowledge GenomeTM

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


See full index

Medicine > Ankle Anatomy > Flashcards

Ankle Anatomy Flashcards

1
Q

what is the true ankle joint?

A

tibia, fibula articulating with talus

talocrural joint

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

what is the function of the ankle joint?

A

provides stability
used as a lever for push off during gait
conforms to changing terrain
absorbs shock

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

what are the movements of the talocrural joint?

A

1 degree of freedom

plantar/dorsiflexion

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

what is a term used to describe the ankle joint?

A

mortice (carpentry term)-gripper

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

what is the most congruent joint of the body?

A

ankle

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

where does the proximal tibiofibular joint contribute?

A

ankle motion

-small amount of sliding

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

what ligaments are at the distal tibiofibular joint?

A

anterior/posterior tibiofibular ligaments

crural tibiofibular ligament (strongest ligament)

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

where is the talus articular surface wider?

A

anteriorly

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

what holds the ankle joint so strongly?

A

bony congruence

ligaments

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

where is the deltoid ligament?

A

medial aspect of the ankle

stronger than the lateral collateral

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

what will happen before ligaments tear at the ankle?

A

bones will break

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

what are the bands at the lateral aspect of the ankle?

A

anterior tf (weakest)
post. tf (strongest)
calcaneofibular

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

which malleolus is more distal?

A

fibula

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

what muscles are responsible for dorsiflexion?

A

anterior tibialis
extensor digitorum
extensor hallicus longus

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

what muscles are responsible for plantar flexion?

A

gastrocnemius
soleus
tibialis posterior (also inversion)

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

when you pass out, you will always fall…

A

forward

center of gravity passes in the front of the ankle

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

what is the susentaculum tali?

A

bony prominence of calcaneus where things link to

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

what is the tarsal canal?

A

bony tunnel b/w post articular surface of calcaneus and the ant and medial articulation

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

what runs through the tarsal canal?

A

ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what ligaments are present at the subtalar joint?

A

interosseous talocalcaneal L
Ligamentum cervicis
Med and lat collateral L
Post and lat talocalcaneal L

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what is the role of the subtalar jt?

A

connect the leg and the foot

absorb rotational motion of the leg

22
Q

what is the TCN joint?

A

talocalcaneonavicular joint

23
Q

what is the spring ligament?

A

plantar calcaneonavicular L

triangle shape that runs along subtalar joint and inserts of the inferior portion of the navicular

24
Q

where does TRUE plantar and dorsiflexion occur?

A

true ankle joint

25
Q

where does in/eversion occur?

A

subtalar, TCN joints

26
Q

where is the transverse tarsal joint?

A

compound joint formed by the talonavicular jt and the calcaneocuboid
divides hindfoot from the midfoot

27
Q

which foot bones are immobile during weight bearing?

A

navicular
cuboid
(all other bones move around them)

28
Q

what is the long plantar ligament?

A

from calcaneus and cuboid (inferiorly)
to the base of MT 2,3,4
contributes to stability of the transverse jt

29
Q

which joints are in the midfoot region?

A

subtalar
TCN
Transverse joint

30
Q

what kind of joints are the TMTs?

A

plane joints

31
Q

where do you experience plantar fasciitis?

A

plantar aponeurosis

32
Q

where is the foot arch highest?

A

medially

33
Q

which tissues maintain longitudinal foot arches?

A

spring L
long plantar L
short plantar L
plantar aponeurosis

34
Q

which bone is the keystone of the transverse arch of the foot?

A

middle cuneiform

35
Q

how can you isolate the soleus?

A

flex the knee, then plantar flex

36
Q

what is the O/I of gastroc?

A

O: condyles of the femur
I: achilles tendon onto calcaneus

37
Q

what is the O/I of soleus?

A

O; from tibia and fibula

I; achilles tendon into calcaneus

38
Q

what can gastroc and soleus also cause?

A

hindfoot supination

39
Q

what is the O/I of tibialis anterior?

A

O: proximal tibia and interosseus membrane
I: 1st MT and medial cunieform

40
Q

what is the O/I of extensor hallucis longus?

A

O: anterior fibula and interosseus
I: great toe

41
Q

what is the O/I of the extensor digitorum longus?

A

O: upper tibia and fibula
I: phalanx of toes 2-5

42
Q

what is the O/I of the fibularis longus?

A

O: fibula and tibial condyle
I: MT 1 and medial cuneiform (wraps around inferiorly)

43
Q

what is the O/I of the fibularis brevis?

A

O: mid fibula
I: MT V

44
Q

what do the fibularis muscles do?

A

evert the ankle

45
Q

what is the O/I of the posterior tibialis?

A

O: tibia, fibula, interosseus
I: MT 2-5

46
Q

what is the role of the posterior tibialis?

A 
plantar flex
invert foot (strongest)
47
Q

what does the deep peroneal nerve innervate?

A

tibialis anterior
extensor digitorum longus
extensor digitorum brevis
extensor hallucis longus

48
Q

what does the superficial peroneal nerve innervate?

A

fibularis longus

fibularis brevis

49
Q

what does the tibial nerve innervate?

A

gastro
soleus
flexors longuses
tibialis posterior

50
Q

what does the medial plantar nervve innervate?

A

flexor digitorum brevis
flexor hallucis brevis
abductor hallucis
1st lumbrical

51
Q

what does the lateral plantar nerve innervate?

A

intrinsic foot muscles

Medicine (146 decks)

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