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Arthrology > quiz 2 > Flashcards

quiz 2 Flashcards

1
Q

4 joints that make up shoulder girdle

A

Glenohumeral
Acromioclavicular
Sternoclavicular
Scapulothoracic

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2
Q

which 2 joints do you do joint mobs on

A

GH
Scapulothoracic

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3
Q

sternoclavicular joint type

A

saddle or plane
multiaxial

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4
Q

ligaments of sternoclavicular (5)

A
  1. sternoclavicular ligament
  2. joint capsule
  3. interclavicular ligament
  4. costoclavicular ligament
  5. articular disc
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5
Q

acromioclavicular joint type

A

plane triaxial

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6
Q

acromioclavicular ligaments

A
  1. fibrous capsule
  2. acromioclavicular ligament
  3. coracoclavicular ligament (trapezoid, conoid)
  4. coracoacromial ligament
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7
Q

GH joint ligaments

A

anterior: superior, middle, inferior humeral ligaments (prevent anterior dislocation)

superiorly: coracohumeral, transverse humeral

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8
Q

what ligament holds the tendon of bicep inside intertubercular groove

A

transverse humeral ligament

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9
Q

what is the largest shoulder bursa

A

subacromial / subdeltoid

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10
Q

loose pack or resting of GH

A

40-55 degrees abduction

30 degrees horizonal adduction in scapular plane

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11
Q

closed packed position of GH

A

full abduction w lateral rotation

max congruency
min movement
max stability

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12
Q

capsular pattern of restriction GH

A

lateral rotation
abduction
medial rotation

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13
Q

3 things that live in subacromial space

A
  1. supraspinatus tendon
  2. biceps long head tendon
  3. subacromial bursa
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14
Q

what is the roof in the subacromial space formed by

A

coracoacromial ligament

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15
Q

scapulothoracic joint

A

not a true joint

no ligaments

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16
Q

what is the loose packed position of scapulothoracic

A

when arm is resting at the side

no closed pack position

17
Q

what 3 joints do the scapulothoracic rhythm involve

A

humerus
scapula
clavicle

18
Q

what is phase 1 of scapulothoracic rhythm

A

humerus 30 degrees abduction

scapula minimal movement

clavicle 0-5 degrees of elevation

19
Q

phase 2 of scapulothoracic rhythm

A

humerus 40 degrees abduction

scapula 20 degrees upward rotation

clavicle 15 degrees elevation

20
Q

phase 3 scapulothoracic rhythm

A

humerus 60 degrees abduction

30 degrees rotation of scapula

clavicle 30-50 degrees posterior rotation, 15 degrees upward elevation

21
Q

what is the humeral scapular ratio

A

for every 2 degrees of motion in the humerus there is 1 degree of motion in the scapula

22
Q

Scapulothoracic joint functions (5)

A
  1. Increases ROM of shoulder for greater reach
  2. Maintain length tension relationship w deltoid
  3. Provide GH stability
  4. Injury prevention through shock absorption
  5. Permits elevation of body
23
Q

what muscles do flexion shoulder (3)

A

ant deltoid
biceps
pec major

24
Q

what mm’s extend the shoulder (2)

A

post deltoid
triceps

25
Q

what mm’s do abduction of shoulder (2)

A

middle delt
supraspinatus

26
Q

what mm’s do adduction of GH

A

teres major
lats

27
Q

what mm’s do horizontal adduction (2)

A

pec major
coracobrachialis

28
Q

what mm’s do internal rotation (3)

A

subscapularis
pec major
lats

29
Q

what mm’s do external rotation (2)

A

infraspinatus
teres minor

30
Q

which 2 joints connect the upper arm to the axial skeleton via clavicle

A

sternoclavicular
acromioclavicular

31
Q

how many degrees of abduction is done by humerus and how may degrees in done by scapula

A

humerus (GH joint) - 130

scapula - 50 degrees

32
Q

articular surfaces of SC joint

A

CONVEX sternal head of clavicle
CONCAVE manubrium of sternum

33
Q

AC joint articular surfaces

A

CONVEX acromion
convex lateral clavicle

34
Q

articular surfaces GH

A

convex head of humerus
concave glenoid cavity

35
Q

scapulothoracic artic surfaces

A

concave subscapular fossa
convex posterior ribs

Arthrology (11 decks)

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