Exam 3 Flashcards

1
Q

average CoM vertical displacement during gait

A

5 cm

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

average CoM side to side displacement during gait

A

4 cm

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

what contributes most to conserving energy during gait:

A
  1. ankle rotation
  2. pelvic obliquity
  3. knee flexion
  4. frontal plane pelvic rotation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

pronation

A

eversion
abduction
dorsiflexion

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

supination

A

inversion
adduction
plantar flexion

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

normal dorsiflexion ROM

A

15-25 degrees

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

normal plantarflexion ROM

A

40-55 degrees

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

normal subtalar inversion ROM

A

23 degrees

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

normal subtalar eversion ROM

A

13 degrees

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

normal transverse tarsal inversion ROM

A

20-25 degrees

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

normal transverse tarsal eversion ROM

A

10-15 degrees

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

normal MTP extension ROM

A

65-85 degrees

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

normal MTP flexion ROM

A

30-40 degrees

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

arthrokinematics of subtalar joint

A
  • posterior facet

- concave talar facet on convex calcaneus

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

purpose of the subtalar joint

A

to adapt to terrain

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

usual bone movement of subtalar joint

A

stable calcaneus and a moving talus

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

spring ligament

A

supports transverse tarsal stability

-supports talar head during weight bearing

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

keystone of medial longitudinal arch

A

talonavicular joint

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

keystone of the transverse arch

A

middle cuneiform

20
Q

purposes of arces of the foot

A
  • stability and resiliency
  • shock absorption
  • load bearing
21
Q

passive support of medial longitudinal arch

A

plantar fascia

22
Q

windlass effect

A

: plantar fascia is stretched by hyperextension of MTP’s, raising the arch

23
Q

purpose of distal intertarsal joints

A
  • assist transverse tarsal joint in pronation and supination-transver to forefoot
  • transverse arch support
24
Q

arthrokinematics of distal intertarsal joints

A

convex navicular facets, concave cuneiform facets

-mostly gliding

25
Q

normal amount of TMJ depression

A

35-55 mm

26
Q

normal amount of TMJ protrusion

A

6-8 mm

27
Q

normal TMJ lateral deviation

A

10 mm to each side

28
Q

translation of TMJ occurs in:

A

superior portion of joint

29
Q

roll of TMJ occurs in:

A

inferior portion of joint

30
Q

motions of protrusion:

A

anterior and inferior slide

31
Q

TMJ closed pack postion

A

teeth tightly clenched

32
Q

TMJ open pack position

A

mouth slightly open, lips together, teeth not in contact

33
Q

TMJ occlusal position

A

gentle contact of teeth

34
Q

time in swing phase during gait

A

40%

35
Q

time in stance phase during gait

A

60%

36
Q

time of double limb support during gait

A

10% double
40% single
10% double
40% single

37
Q

differences between stride cycle and gait cycle

A
  • no toe off in running
  • no single leg support in running
  • reversed % spent in phases
  • toe out increases
  • center of mass height is lower at midstance with running
38
Q

subtalar movement in the frontal plane during gait:

A
  • inversion at heel strike
  • eversion through stance
  • inversion with toe off
39
Q

masseter actions

A
  • elevations
  • ipsilateral lateral deviation
  • protrusion
40
Q

medial pterygoid actions

A
  • elevations
  • contralateral lateral deviation
  • protrusion
41
Q

lateral pterygoid actions

A
superior head:
-contralateral lateral deviation
-protrusion
inferior head:
-depression
-contralateral lateral deviation
42
Q

temporalis

A
  • elevation
  • ipsilateral lateral deviation
  • retrusion
43
Q

where do you have pain with TMD?

A
  • headaches
  • cervical
  • jaw pain
44
Q

where is most stability in the ankle?

A

supination

45
Q

what ligament becomes taut when talus is moving anterior on the tibia?

A

anterior talofibular ligament

46
Q

arthrokinematics of the TMJ:

A

convex moving on a concave surface