Upper Extremity Muscles 1

What is the name of this muscle?

• biceps brachii

• triceps brachii

• deltoid

• supraspinatus

Where does the bicep brachii originate?

• coracoid process of scapula, supraglenoid tubercle of scapula

• radial tuberosity of radius

• medial epicondyle of humerus

• lateral radius

Where does the bicep brachii insert?

• coracoid process of scapula, supraglenoid tubercle of scapula

• radial tuberosity of radius

• lateral radius

• medial epicondyle of humerus

What action does the bicep brachii perform?

• elbow flexion and supination

• pronation

• wrist flexion

• wrist extension

What is the name of this muscle?

• bicep brachii

• brachioradialis

• pronator teres

• supinator

Where does the brachioradialis originate?

• lateral humerus

• lateral radius

• medial humerus

• medial radius

Where does the brachioradials insert?

• lateral humerus

• lateral radius

• medial humerus

• medial radius

What action does the brachioradialis perform?

• elbow flexion

• pronation

• elbow extension

• supination

What is the name of this muscle?

• deltoid

• pectoralis major

• supraspinatus

• infraspinatus

Where does the deltoid originate?

• clavicle, acromion process, and spine of scapula

• deltoid tuberosity

• clavicle and sternum

• upper shaft of humerus