Upper Body-Shoulder and Arm

Question 1

Deltoid Origin

Answer 1

Lateral 1/3 of clavicle, acromion, spine of scapula

Question 2

Deltoid Insertion

Answer 2

Deltoid Tuberosity

Question 3

Deltoid Actions

Answer 3

All fibers: Abduct
Anterior fibers: Flex, medially rotate, horizontally adduct the G/H joint
Posterior fibers: Extend, Laterally Rotate, Horizontally Abduct

Question 4

Trapezius Origin

Answer 4

EOP, medial portion of superior nuchal line, ligamentum nuchae, SP of C7 to T12

Question 5

Trapezius Insertion

Answer 5

Lateral 1/3 of clavicle, acromion, spine of scapula

Question 6

Trapezius Actions

Answer 6

Extend head and neck
Unilateral: Lateral flexion of to head to same side
Rotation of head/neck to opposite side
Elevate scapula
Upward rotation of scapula
Middle: Adduct scapula (retraction), Stabilize scapula
Lower: Depress scapula, Upward rotation of scapula

Question 7

Supraspinatus Origin

Answer 7

Supraspinus fossa

Question 8

Supraspinatus Insertion

Answer 8

Greater tubercle of humerus

Question 9

Supraspinatus Action

Answer 9

Abduct shoulder (G/H joint)
Stabilize head of humerus

Question 10

Infraspinatus Origin

Answer 10

Infraspinous fossa

Question 11

Infraspinatus Insertion

Answer 11

Greater tubercle of humerus

Question 12

Infraspinatus Action

Answer 12

Laterally rotate shoulder, Adduct shoulder

Stabilize head of humerus

Question 13

Teres Minor Origin

Answer 13

Upper 2/3 of lateral border of scapula

Question 14

Teres Minor Insertion

Answer 14

Greater tubercle of humerus

Question 15

Teres Minor Action

Answer 15

Laterally rotate, Adduct, and Stabilize G/H joint

Question 16

Subscapularis Origin

Answer 16

Subscapular fossa

Question 17

Subscapularis Insertion

Answer 17

Lesser tubercle of humerus

Question 18

Subscapularis Action

Answer 18

Medially rotate, stabilize G/H joint (shoulder)

Question 19

Latissimus Dorsi Origin

Answer 19

Inferior angle of scapula, SP of T7-T12, Last 3-4 ribs
Thoracolumbar aponeurosis
Posterior Iliac crest

Question 20

Latissimus Dorsi Insertion

Answer 20

Intertubercular groove of humerus

Question 21

Latissimus Dorsi Actions

Answer 21

Extend, Adduct, Medially rotate shoulder

Question 22

Teres Major Origin

Answer 22

Inferior angle of scapula and lower 1/3 of lateral border of scapula

Question 23

Teres Major Insertion

Answer 23

Crest of lesser tubercle of humerus

Question 24

Teres Major Action

Answer 24

Extend, Adduct, medially rotate shoulder

Question 25

Rhomboid Major Origin

Answer 25

SP of T2-T5

Question 26

Rhomboid Major Insertion

Answer 26

Medial border of the scapula between the spine of the scapula and inferior angle

Question 27

Rhomboid Major Action

Answer 27

Adduct scapula (retracts) Elevate scapula Downwardly rotate scapula

Question 28

Rhomboid Minor Origin

Answer 28

SP of C7 and T1

Question 29

Rhomboid Minor Insertion

Answer 29

Upper portion of medial border of the scapula, across from the spine of the scapula

Question 30

Rhomboid Minor Action

Answer 30

Adduct scapula Elevate scapula Downwardly rotate scapula

Question 31

Levator Scapula Origin

Answer 31

TP of C1-C4

Question 32

Levator Scapula Insertion

Answer 32

Medial border of scapula, between superior angle and superior portion of spine of scapula

Question 33

Levator Scapula Action

Answer 33

``` Unilaterally: Elevate scapula Downwardly rotates scapula Laterally flex the head and neck Rotates the head and neck to same side Bilaterally: Extends the head and neck ```

Question 34

Serratus Anterior Origin

Answer 34

External surfaces of upper eight or nine ribs

Question 35

Serratus Anterior Insertion

Answer 35

Anterior surface of medial border of scapula

Question 36

Serratus Anterior Action

Answer 36

Origin fixed: Abducts scapula, Upwardly rotates scapula, Depresses scapula, Holds medial border of scapula against the rib cage Scapula fixed: Elevates thorax during forced inhalation

Question 37

Pectoralis Major Origin

Answer 37

Medial half of the clavicle, sternum, and cartilage of Ribs 1-6

Question 38

Pectoralis Major Insertion

Answer 38

Crest of greater tubercle of humerus

Question 39

Pectoralis Major Actions

Answer 39

All fibers: Adduct, Medially rotate shoulder, Elevates thorax during forced inhalation Upper fibers: Flex shoulder, Horizontally adduct shoulder Lower fibers: Extend shoulder

Question 40

Pectoralis Minor Origin

Answer 40

Ribs 3,4,5

Question 41

Pectoralis Minor Insertion

Answer 41

Medial surface of coracoid process of the scapula

Question 42

Pectoralis Minor Action

Answer 42

Depress scapula, Abduct scapula, Downwardly rotate scapula | With scapula fixed: helps elevate thorax during forced inhalation

Question 43

Biceps Brachii Origin

Answer 43

Short head: Coracoid process of scapula | Long head: Supraglenoid tubercle of scapula

Question 44

Biceps Brachii Insertion

Answer 44

Tuberosity of the radius and aponeurosis of the biceps brachii

Question 45

Biceps brachii actions

Answer 45

Flex elbow, supinate forearm, flex shoulder

Question 46

Triceps Brachii Origin

Answer 46

Long head: Infraglenoid tubercle of the scapula Lateral head: Posterior surface of proximal half of humerus Medial head: Posterior surface of distal half of humerus

Question 47

Triceps Brachii Insertion

Answer 47

Olecranon process of ulna

Question 48

Triceps Brachii Actions

Answer 48

All heads: Extend the elbow Long head: Extends the shoulder Adducts shoulder

Question 49

Coracobrachialis Origin

Answer 49

Coracoid process of the scapula

Question 50

Coracobrachialis Insertion

Answer 50

Medial surface of mid-humeral shaft

Question 51

Coracobrachialis Actions

Answer 51

Flex the shoulder | Adduct the shoulder