Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

UE biomechanics > SCAP > Flashcards

SCAP Flashcards

1
Q

scap lies in a ___ angle to which plane?

A

30 deg to the coronal plane

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

the scap articulate at the GH and AC joint at what degrees?

A

60

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

at static positioning the spine of the scap should lie at

A

T3

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

with winged scap the ___ border is lifted which means what nerve is injured?

A

medial

long thoracic

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

what type of acromion is implicated to cause an impingement?

A

3 because it is hooked

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

what type of acromion is curved?

A

2

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

what is scaption?

A

30 deg. anterior to the coronal plane –> outlet space is open

position of muscular equilibrium

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

if patient is doing abduction excercises what postion should they do it in?

A

scaption

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

what muscle is primarily responsible for the abduction of arm in coronal plane?

A

the middle delt

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

how can you determine the action of the muscle given its position to the axis of rotation?

A

the muscles that are lateral to the axis will aid in abduction in the coronal plane

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

in the coronal plane what is the action of the anterior delt?

A

it can abd or add

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

in the coronal plane the posterior delt aids in when motion?

A

adduction

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

the firing order of deltoid with abduction in the coronal plane?

A

middle -> posterior –> anterior

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

abduction in the scapular plane involved which parts of the deltoid muscle?

A

middle and anterior

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

why does scaption recruit more anterior delt fibers?

A

because of ER

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

peak strength of delt in both the coronal and scaption

A

90 deg.

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

protraction and retraction occurs along which axis?

A

y

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

which muscles are responsible for protraction of scap

A

pec minor and serratus anterior

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

which muscles are responsible for the retraction of the scap

A

rhomboid and middle trap

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

tilting of the scap happens on which axes?

A

x

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

posterior tilting is when the arm is

A

flexed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

anterior tilting is when the arm is

A

extended

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what muscles are responsible for posterior tilting of scap

A

lower trap

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what muscles are responsible for anterior tilt

A

upper trap
serratus anterior
pec minor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
during which motion does the scap become moere sagittal?
protractions
26
what happens anatomically in protraction of the scap?
the medial border of the scap is pulled inward to spine and glenoid faces anteriorly
27
vertical elevation of scap is like what other action?
anterior tilt
28
depression of scap is like what other action?
posterior tilt
29
angular rotation occurs along what axis?
Z axis
30
with downward rotation what happens to the inferior border and scap
inferior border goes medial and glenoid faces inferior
31
with upward rotation of the scap what happens to the inferior border and glenoid?
the inferior border goes lateral and glenoid faces superior
32
what muscles are responsible for the downward rotation of scap
rhomboid
33
what muscles do upward rotation of the scap
serratus anterior and middle and lower trap
34
what happens in normal arm elevation?
abduction and flexion > scap protracts & upwardly rotates > scap posteriorly tilts while humeral head ER
35
why does the humeral head ER with arm elevation
to increase the subacromial outlet space
36
when does the scap actively start to rotate?
30-40
37
when does the scap begin to passively rotate?
60-70
38
what is the overall motion ratio of the GH:scap
120:60 = GH:scap
39
what is the scapulohumeral rythm?
how the scap and GH move in conjunction with one another
40
after what deg. of abduction movement does the scapulohumeral ratio even out
at 120 deg.
41
during abduction how does the scap tilt?
posteriorly: superior pole moves down and away and inferior pole moves up and forward
42
describe the swivel affect of the scap when abducting?
before 90 the fossa shifts posteriorly and after 90 the fossa shifts anterior
43
when a pt. has forward shoulder clinically they will present with
increase of protraction not enough posterior tilt not enough upward rotation
44
what mm. are responsible for forward shoulders
weak serratus anterior and middle & lower trap
45
apleys scratch test is used for
UE ROM
46
anterior contralateral test the GH how?
horizontal flexion
47
anterior contralateral test the scap how
protraction and upward rotations
48
the anterior ipsi-contralteral test GH how
ER and flexion
49
the anterior ipsi-contralteral test scap how
protraction and upward rotation
50
the posterior contralateral test the GH how?
IR and extension
51
the posterior contralateral test the scap how?
retraction and downward rotation
52
SICK scap stands for
scapula protracted inferior border prominent coracoid pain kinesis altered
53
setting the scap means what?
being able to hold the scap firmly against the rib cage for GH to have full strength
54
what muscles are responsible for setting the scap?
middle and lower trap | serratues anterior
55
SC joint: is it stable or unstable?
stable
56
what is the degrees of motion of the SC?
2: vertical and horizontal
57
as arm moves foward what happens to the SC joint?
it goes posterior
58
what are the ligaments of the SC?
superior, anterior, posterior SC costoclavicular interclavicular
59
vertical movement of SC
elevation and depression
60
horizontal movement of SC
anterior/protraction | posterior/retraction
61
the SC joint is restricted by which ligament and mm
the costoclavicular or subclavius mm.
62
during flexion/extension how much conjunct rotation occurs?
30
63
is the AC joint stable or unstable?
unstable
64
ligaments of the AC joint
superior and deep AC joint Conoid Trapezoid
65
when is the conoid ligament taught
retraction
66
when is the trapezoid ligament taught?
protraction
67
when does most movement of the AC jt. occur?
flexion/extension
68
where do AC seperations or dislocation occur?
in the superior region
69
what structures check the AC for sperations
delto-trapezoid apneurosis
70
Grade 1 of AC seperation
partial tear of AC with no elevation
71
Grade 2 AC seperation
ACpartial torn with partial tear of CC with slight elevation
72
Grade 3 of AC seperation
complete tear or AC and CC
73
what JT. is known as the horizontal stabilizer of the shoulder
AC
74
what does 60 deg angulation refer to?
the anterior 30 deg of scap and the 30 deg posterior of the clavical making a 60 angulation between the scap and the acromium

UE biomechanics (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions