Upper Arm

Question 1

Pectoralis Major

Answer 1

PM Flexion, horizontal adduction, adduction
Assists internal rotation

Question 2

Latissimus Dorsi

Answer 2

PM Extension, adduction and internal rotation

Question 3

Anterior Deltoid

Answer 3

PM Flexion, Abduction, Horizontal Adduction, Internal Rotation

Question 4

Middle Deltoid

Answer 4

PM Flexion, Abduction

Question 5

Posterior Deltoid

Answer 5

PM Abduction, External Rotation, Extension, Horizontal Abduction

Question 6

Biceps Brachii

Answer 6

PM HU Flexion and RU Supination
Assist GH Flexion

Question 7

Coracobrachialis

Answer 7

Assist GH Flexion and Adduction

Question 8

Teres Major

Answer 8

Assist Extension, Adduction, Internal Rotation
Effective if scap is stabilized

Question 9

Triceps Brachii

Answer 9

PM HU Extension
Long head assists GH Extension and adduction

Question 10

Scapulohumeral Rhythm Phase 1

Answer 10

Degrees: 0-30
Scapula/muscle: none
GH Joint/muscle: Abduction, Supraspinatus

Question 11

Scapulohumeral Rhythm Phase 2

Answer 11

Degrees: 30-90
Scapula/muscle: Upward Rotation, Upper/lower trap,serratus
GH Joint/muscle: Abduction, deltoid, Humeral head depession: ITS

Question 12

Phase 3

Answer 12

Degrees: 90-180
Scapula/muscle: Upward Rotation
GH Joint/muscle: Abduction, Deltoid, ER: Infraspinatus and teres minor

Question 13

Anconeus

Answer 13

assist HU extension
pulls synovial membrane out of olecranon fossa

Question 14

Brachialis

Answer 14

PM HU Flexion
only uni articulate flexor muscle
“workhorse of elbow”
pronated grip curl

Question 15

Brachioradialis

Answer 15

PM HU Flexion
Pronation and supination
neutral grip curl