Muscles

Question 1

Serratus anterior

Answer 1

Scapular abduction, scapular lateral rotation

Origin: The upper eight, nine, or 10 ribs
Insertion: Costal surface of the medial border of the scapula

Question 2

Levator scapulae

Answer 2

Scapular elevation, scapular medial rotation

Origin: transverse processes of the upper 4 cervical vertebrae

Insertion: medial border of the scapula between the superior angle and the root of the spine

Question 3

Upper fibers of the trapezius

Answer 3

Scapular elevation

Origin: medial one third of the superior nuchal line of you occipital bone

Insertion: posterior border of the lateral one third of the clavicle

Question 4

Middle fibers of the trapezius

Answer 4

Scapular adduction

Origin: spinous processes of T1 To T5

Insertion: medial border of the Acromion process and the superior border of the rest the spine of scapula

Question 5

Lower fibers of the trapezius

Answer 5

Scapular depression, scapular adduction

Origin: spinous processes of T6 to T12

Insertion: Turbercle at the apex of the triangular surface of the medial end of the spine of scapula

Question 6

Rhomboid minor

Answer 6

Scapular adduction, scapular medial rotation

Origin: spinous processes of C7 and T1, inferior portion of the Ligamentum nuchae

Insertion: base of the smooth triangular region at the root of the spine of the scapula

Question 7

Rhomboid major

Answer 7

Scapular adduction, scapular medial rotation

Origin: spinous processes of T2 to T5

Insertion: medial border of the scapula between the root of the spine and inferior angle

Question 8

Deltoid – Anterior fibers

Answer 8

Shoulder flexion, shoulder internal rotation

Origin: lateral border superior surface of the acromion process

Insertion: deltoid tuberosity on the lateral aspect of the humeral shaft

Question 9

Deltoid – middle fibers

Answer 9

Shoulder abduction

Origin: lateral border and superior surface of acromion process

Insertion: deltoid tuberosity on the lateral aspect of the humeral shaft

Question 10

Deltoid – posterior fibers

Answer 10

Shoulder extension, shoulder external rotation

Origin: inferior lip of the crest of the spine of the scapula

Insertion: deltoid tuberosity on the lateral aspect of the humeral shaft

Question 11

Supraspinatus

Answer 11

Shoulder abduction

Origin: medial two thirds of the supra spinous fossa

Insertion: superior facet of the greater tuberosity of the humerus

Question 12

Coracobrachialis

Answer 12

Shoulder flexion and adduction

Origin: tip of the coracoid process

Insertion: middle of the medial aspect of the shaft of the humerus

Question 13

Pectoralis major

Answer 13

Shoulder horizontal adduction, shoulder internal rotation

Origin: clavicle head, Anterior border of the medial third of the clavicle

Insertion: lateral lip of the intertubercular groove of humerus

Question 14

Pectoralis minor

Answer 14

Scapular protraction, scapular medial rotation

Origin: our services of ribs 2-4 or 3-5near the costal cartridges

Insertion: medial border and upper surface of the coracoid process of the scapula

Question 15

Subscapularis

Answer 15

Shoulder internal rotation

Origin: medial two thirds of the subscapular fossa of the scapula

Insertion: lesser tuberosity of the humerus, anterior aspect shoulder joint capsule

Question 16

Infraspinatus

Answer 16

Shoulder external rotation

Origin: medial two thirds of the infraspinatus fossa

Insertion: middle facet of the greater tuberosity of the humerus

Question 17

Teres minor

Answer 17

Shoulder external rotation

Origin: upper two thirds of the lateral aspect of the dorsal surface of the scapula

Insertion: inferior facet of the greater tuberosity of the humerus

Question 18

Teres major

Answer 18

Shoulder extension, shoulder internal rotation

Origin: posterior surface of the inferior angle of the scapula

Insertion: media lip of the intertubercular groove of the humorous

Question 19

Latissimus dorsi

Answer 19

Shoulder extension, shoulder adduction, shoulder internal rotation

Origin: posterior layer of the thoracolumbar fascia

Insertion: floor of the intertubercular groove of the humerus