Muscle Actions Warm up #3

Which muscle is primarily responsible for scapular elevation?

• Pectoralis Major

• Levator Scapulae

• Serratus Anterior

• Latissimus Dorsi

How many heads does the deltoid muscle have?

• 1

• 2

• 3

• 4

Which muscle is part of the rotator cuff and is responsible for abduction of the shoulder?

• Infraspinatus

• Supraspinatus

• Teres Minor

• Subscapularis

What is the main action of the rhomboid muscles?

• Scapular protraction

• Scapular retraction

• Scapular depression

• Scapular elevation

Which muscle is responsible for upward rotation of the scapula?

• Pectoralis Minor

• Serratus Anterior

• Latissimus Dorsi

• Coracobrachialis

Which head of the trapezius is responsible for scapular depression?

• Upper

• Middle

• Lower

• All heads

Which muscle is responsible for both GH (glenohumeral) flexion and adduction?

• Teres Major

• Coracobrachialis

• Infraspinatus

• Triceps Brachii

The long head of the biceps brachii attaches to which structure?

• Inferior glenoid labrum

• Superior glenoid labrum

• Medial epicondyle

• Coracoid process

Which muscle is responsible for internal rotation of the shoulder?

• Infraspinatus

• Teres Minor

• Subscapularis

• Supraspinatus

Which muscle is responsible for GH extension?

• Biceps Brachii

• Triceps Brachii

• Pectoralis Major

• Coracobrachialis