Exam 4: ENS 303

What is the origin of the Short Head of the Bicep Brachii?

• Tuberosity of radius and aponeurosis of bicep brachii

• Supraglenoid tubercle of scapula

• Distal half of anterior surface of humerus

• • Proximal two-thirds of the lateral supracondylar ridge of humerus

What action is performed by the Long Head of the Bicep Brachii?

• Extend the elbow, extend the shoulder, adduct the shoulder

• Flex the elbow, supinate the forearm, and flex the shoulder

• Flex the elbow

• Pronate the forearm

Which muscle is responsible for flexing the elbow and has its origin on the distal half of the anterior surface of the humerus?

• Brachialis

• Brachioradialis

• Triceps Brachii (Lateral head)

• Pronator Teres

What is the origin of the Brachioradialis?

• Infraglenoid tubercle of scapula

• Supraglenoid tubercle of scapulav

• Proximal two-thirds of the lateral supracondylar ridge of humerus

• Distal half of anterior surface of humerus

The Triceps Brachii, Long Head, originates from which part of the scapula?

• Infraglenoid tubercle of scapula

• Supraglenoid tubercle of scapula

• • Coracoid process of scapula

• • Posterior surface of distal half of humerus

What muscle assists in pronating and supinating the forearm, in addtion to flexing the elbow?

• Anconeus

• Supinator

• Pronator Teres

• Pronator Quadratus

Where does the Pronator Teres have its origin?

• Lateral epicondyle of humerus

• Medial epicondyle of humerus

• Common flexor tendon from medial epicondyle of humerus

• Proximal two-thirds of the lateral supracondylar ridge of humerus

Which muscle is responsible for pronating the forearm and has its origin on the medial, anterior surface of the distal ulna?

• Pronator Teres

• Pronator Quadratus

• Supinator

• Anconeus

What is the primary function of the elbow?

• Flexion/Extension

• Pronation/Supination

• Assisting the hand for appropriate position

• Absorbing shock

Which of the following is NOT a distal component of the humerus?

• Medial Epicondyle

• Trochlea

• Capitulum

• Olecranon Fossa