Shoulder/Arms

Question 1

Answer 1

Question 2

(Name of Joint)

Answer 2

Question 3

(Name of Muscle)

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

Humeral torsion

Answer 8

Variable angle btwn glenohumeral joint & elbow (throwing)

Question 9

Answer 9

Question 10

What is this “joint” called?

Answer 10

Thoracoscapular “joint”

Question 11

Answer 11

Question 12

Scapular protractors and retractors?

Answer 12

Protractors: Serratus Anterior, pectoralis minor

Retractors: Trapezius, rhomboids

Question 13

Answer 13

Trapezius

Inn: accessory nerve

Att: spinous processes, clavicle, scapular spine

Action: scapular elevation, depression, rotation, retraction

Question 14

Answer 14

Levator Scapulae

Att: Transverse process of C1-C4, medial border of scapula

Action: scapular elevation, inferior rotation

Question 15

(2 muscles)

Answer 15

Rhomboid major & minor

Att: Spinous processes of T1-T-4, medial border of scapula

Action: scapular elevation, inferior rotation, retraction

Question 16

Answer 16

Pectoralis minor

Att: coracoid process of scapula; ribs 3-5

Action: Scapular protraction, inferior rotation, depression

Question 17

Answer 17

Serratus Anterior

Att: Ribs 1-9, medial border of scapula

Action: scapular protraction, superior rotation, depression

Question 18

Name of shoulder joint

Answer 18

Glenohumeral joint

Question 19

Answer 19

Question 20

Scapulohumeral rhythm

Answer 20

Ratio of rotation of scapula to humerous when arm is raised. Variable

Question 21

What muscles are the humeral flexors and extensors?

Answer 21

Flexors: deltoid (anterior), pectoralis major, coracobrachalis

Extensors: deltoid (posterior), latissumus dorsi, teres major

Question 22

What muscles are the humeral medial rotators and lateral rotators?

Answer 22

Medial rotators: pectoralis major, subscapularis, latissimus dorsi, teres major, deltoid

Lateral rotators: deltoid, infraspinatus, teres minor

Question 23

Answer 23

Pectoralis major

Att: sternum, clavicle, ribs, greater tubercle of humerus

Action: Humeral adduction, medial rotation, flexion

Question 24

Answer 24

Latissimus dorsi

Att: Spinous processes, iliac crest, intertubercular groove of humerous

Action: humeral adduction, medial rotation, extension

Question 25

Answer 25

Deltoid Att: clavicle, acromion, scapular spine, deltoid tuberosity Action: Humeral abduction, rotation, flexion/extension

Question 26

Answer 26

Coracobrachialis Att: coracoid process of scapula, medial humeral shaft Actions: Humeral adduction, flexion

Question 27

Answer 27

Teres major Att: Inferior angle of scapula, lesser tubercle of humerus Actions: humeral adduction, extension, medial rotation

Question 28

Answer 28

Question 29

Answer 29

Supraspinatus Att: Supraspinous fossa, greater tubercle of humerus Action: humeral abduction, stabilize joint, NOT rotation

Question 30

Answer 30

Subscapularis Att: subscapular fossa, lesser tubercle of humerus Action: medial rotation of humerus, stabilize joint

Question 31

Answer 31

Infraspinatus Att: infraspinous fossa, greater tubercle of humerus Action: lateral rotation of humerus, stabilize joint

Question 32

Answer 32

Teres minor Att: lateral border of scapula, greater tubercle of humerus Action: lateral rotation of humerus, stabilize joint

Question 33

Rotator cuff injury

Answer 33

Tearing of supraspinatus tendon Very common: athletes, elderly

Question 34

Elbow flexors and extensors?

Answer 34

Flexors: Biceps brachii, Brachialis Extensors: Triceps brachii

Question 35

Answer 35

Biceps brachii Att: glenoid labrum, coracoid process of scapula, radial tuberosity Action: flex elbow Supinates forearm Flexes & abducts shoulder

Question 36

Answer 36

Brachialis Att: Humeral shaft, ulnar tuberosity Action: elbow flexion

Question 37

Triceps brachii

Answer 37

Att: inferior glenoid lip, humeral shaft, olecronon process of ulna Action: elbow extension

Question 38

Answer 38

Question 39

Arm innervation source?

Answer 39

Brachial plexus

Question 40

Brachial plexus mnemonic

Answer 40

Question 41

Brachial plexus roots' vertebrae?

Answer 41

C5, C6, C7, C8, T1

Question 42

Brachial plexus trunks?

Answer 42

Question 43

Brachial plexus branches?

Answer 43

Question 44

Brachial plexus Cords?

Answer 44

Question 45

Axillary Nerve innervates? Radial nerve innervates? Musculocutaneous nerve innervates?

Answer 45

Axillary: Deltoid, Teres minor Radial: Triceps brachii Musculocutaneous: coracobrachialis, biceps brachii, brachialis