shoulder movement and stabilizers

Question 1

scapular upward rotation during shoulder flexion

Answer 1

inferior angle of scapula moves upwards and lateral

Question 2

scapular protraction or scapular abduction during shoulder flexion

Answer 2

medial border of scapula moves away from the vertebral column

Question 3

scapular elevation during shoulder flexion

Answer 3

acromion process moves superiorly

Question 4

scapular anterior tilt during shoulder flexion

Answer 4

acromion process moves anteriorly, inferior angle moves posteriorly

Question 5

scapular posterior tilt during shoulder flexion

Answer 5

acromion process moves posterior, inferior angle moves anteriorly (middle to end range of shoulder flexion/abduction)

Question 6

scapular downward rot during shoulder extension

Answer 6

inferior angle moves downward and medial

Question 7

scapular retraction during shoulder extension

Answer 7

medial border of scapula moves towards vertebral column

Question 8

scapular depression during shoulder extension

Answer 8

acromion process moves inferiorly

Question 9

scapular posterior tilt during shoulder extension

Answer 9

acromion process moves posteriorly, inferior angle moves anteriorly

Question 10

scapular movements during shoulder flexion

Answer 10

upward rotation, protraction, elevation, anterior tilt, posterior tilt

Question 11

scapular movements during shoulder extension

Answer 11

downward rotation, retraction, depression, posterior tilt

Question 12

clavicular motion during shoulder flexion

Answer 12

posterior rotation, elevation, protraction, internal rot

Question 13

clavicular motion during shoulder extension

Answer 13

anterior rotation, depression, retraction, external rot

Question 14

scapula ir at ac joint

Answer 14

protraction of clavicle

Question 15

scapula er at ac joint

Answer 15

retraction of clavicle

Question 16

scapular stabilizers

Answer 16

serratus anterior, trapezius, rhomboid major and minor, pecs minor, levator scapulae

Question 17

primary scapular protractor (without thus arms can’t be raised overhead)

saw muscle

Answer 17

serratus anterior

Question 18

strongest portion of serratus anterior

Answer 18

lowest five digitations

Question 19

paralysis of serratus anterior

Answer 19

leads to medial winging of scapula

Question 20

affected nerve if there is paralysis of serratus anterior

Answer 20

long thoracic nerve

Question 21

superficial muscle of neck and back

shawl muscle or musculus cuucllaris

Answer 21

trapezius muscle

Question 22

upper and lower traps

Answer 22

work together as scapular upward rotators

Question 23

upper traps

Answer 23

elevation

Question 24

lower traps

Answer 24

depression

Question 25

paralysis of traps

Answer 25

elevation is limited to 120 deg

Question 26

weakness or loss of these muscle assume a protracted scapula

Answer 26

rhomboids minor and major

Question 27

weakness of thus muscle results to less strength scapular depression and downward rotation of the scapula against resistance

Answer 27

pec minor

Question 28

muscle that elevates scapula and downward rotators

Answer 28

levator scapulae

Question 29

gh stabilizers

Answer 29

supraspinatus, infraspinatus and teres minor, subscapularis, biceps and triceps brachii

Question 30

quick shoulder abduction in early gh abduction

can perform abduction w/o assistance of deltoid

can abduct gh against resistance

Answer 30

supraspinatus

Question 31

external rotators

Answer 31

infraspinatus, teres minor

Question 32

internal rotator

depending on arm position, can flex, extend, abduct, adduct the arm

Answer 32

subscapularis

Question 33

when arm is overhead the subscapularis

Answer 33

able to assist shoulder extension

Question 34

when arm is in IR the subscapularis

Answer 34

able to adduct the shoulder

Question 35

when the arm is in ER the subscapularis

Answer 35

able to abduct the shoulder

Question 36

can act as gh flexor and abductor

Answer 36

biceps

Question 37

can act as gh extensor and adductor

Answer 37

triceps

Question 38

when deltoids and supraspinatus are paralyzed, long head of this muscle acts as substitute for arm elevator

Answer 38

long head of biceps

Question 39

as upper ex weight bearing activities became more difficult this muscles becomes more active

Answer 39

triceps