origin and insertion of shoulder girdle

Question 1

origin and insertion of anterior head of deltoid

Answer 1

origin - lateral third of clavicle

insertion - deltoid tuberosity lateral side of humerus

Question 2

if origin of deltoid is lateral third of clavicle and insertion of deltoid is deltoid tuberosity actions of anterior head of deltoid

Answer 2

flexion and medial rotation

Question 3

origin and insertion of middle head of deltoid

Answer 3

origin - acromion

insertion - deltoid tuberosity lateral side of humerus

Question 4

if origin and insertion of middle head of deltoid is acromion and deltoid tuberosity of humerus what are its actions

Answer 4

abduction

Question 5

origin and insertion of posterior head of deltoid

Answer 5

origin - spine of scapula

insertion - deltoid tuberosity lateral side of humerus

Question 6

if origin and insertion of posterior head of deltoid was spine of scapula and deltoid tuberosity of humerus what are its actions

Answer 6

extension and lateral rotation

Question 7

origin and insertion of infraspinatus

Answer 7

origin - posterior surface of scapula

insertion - middle facet of humerus

Question 8

origin and insertion of supraspinatus

Answer 8

origin - supraspinatus fossa of scapula

insertion - superior facet of humerus

Question 9

if origin and insertion of infraspinatus is posterior surface of scapula and middle facet of humerus what are its actions

Answer 9

lateral rotation

Question 10

if origin and insertion of supraspinatus is supraspinatus fossa of scapula and superior facet of humerus what are its actions

Answer 10

assist in abduction and stabilise humerus

Question 11

origin and insertion of teres minor

Answer 11

origin - lateral border of scapula

insertion - inferior facet of humerus

Question 12

if origin and insertion of teres minor is lateral border of scapula and inferior facet of humerus what are its actions

Answer 12

lateral rotation

Question 13

origin and insertion of teres major

Answer 13

origin - inferior angle of scapula

insertion - intertubercular groove of humerus

Question 14

if origin and insertion of teres major is inferior angle of scapula and intertubercular groove of humerus what are its actions

Answer 14

extension,
abduction
medial rotation

Question 15

origin and insertion of subscapularis

Answer 15

origin - subscapular fossa of scapula

insertion - lesser tubercle of humerus

Question 16

if origin and insertion of subscapularis is subscapular fossa of scapula and lesser tubercle of humerus what are its actions

Answer 16

medial rotation

prevent anterior displacement of humerus

Question 17

Origin and insertion of coracobrachialis

Answer 17

origin - coracoid process of scapula

insertion - medial surface border of humerus

Question 18

if origin and insertion of coracobrachialis is coracoid process of scapula and medial surface border of humerus what are its actions

Answer 18

adduction

flexion

Question 19

origin and insertion of latissimus dorsi

Answer 19

origin - spinous process of T7-12, L1-5, sacrum thoracolumbar fascia
insertion - intertubercular groove

Question 20

action of latissimus dorsi

Answer 20

medial rotation, adduction, extension

Question 21

origin and insertion of pectoralis major

Answer 21

origin - anterior surface of sternal portion of clavicle, sternum,
insertion - crest of greater tubercle of humerus

Question 22

action of pectoralis major

Answer 22

adduction
flexion
medial rotation

Question 23

origin and insertion of trapezius

Answer 23

origin - occipital bone, ligamentum nuchae, spinous process of T1-12
insertion - lateral third of clavicle, acromion, spine of scapula

Question 24

action of trapezius

Answer 24

rotation
retraction
elevation
depression
extends neck

Question 25

origin and insertion of rhomboid minor

Answer 25

origin - spinous process C7-T1

insertion - medial border of scapula and scapula spine

Question 26

action of rhomboid minor

Answer 26

steadies scapula

Question 27

origin and insertion of rhomboid major

Answer 27

origin - spinous process T2-5

insertion - medial border of scapula

Question 28

action of rhomboid major

Answer 28

steadies scapula