KINE 3135: The Elbow and Radioulnar Joints

The video tutorial covers the anatomy and movements of the shoulder and elbow joints, focusing on the elbow and radio ulnar joints. It explains the bones involved, such as the humerus, ulna, and radius, and describes the anatomical position. The tutorial details the movements of the elbow joint, including flexion and extension, and the muscles responsible for these actions, such as the biceps, triceps, and brachialis. It also covers the radio ulnar joint's pronation and supination, highlighting the muscles involved, like the pronator teres and supinator.

Which bone is located on the lateral side of the forearm in anatomical position?

• Scapula

• Humerus

• Ulna

• Radius

What is the function of the interosseous membrane between the radius and ulna?

• Connects the humerus to the ulna

• Allows for complete immobility

• Provides structural support

• Facilitates free movement

Which muscle is primarily responsible for flexion at the elbow?

• Pectoralis major

• Triceps brachii

• Biceps brachii

• Deltoid

What is the main action of the triceps brachii?

• Pronation of the forearm

• Extension of the elbow

• Flexion of the elbow

• Supination of the forearm

Which muscle assists in both pronation and supination of the forearm?

• Triceps brachii

• Deltoid

• Brachioradialis

• Brachialis

What is the role of the pronator teres muscle?

• Supinates the forearm

• Pronates the forearm

• Extends the elbow

• Flexes the elbow

In anatomical position, what is the orientation of the palms?

• Facing outward

• Facing inward

• Facing forward

• Facing backward

What is the primary movement involved in a bicep curl?

• Extension of the elbow

• Supination of the forearm

• Flexion of the elbow

• Pronation of the forearm

Which muscle is not involved in the extension of the elbow?

• Triceps brachii

• Deltoid

• Anconeus

• Biceps brachii

Why is it important to balance the strength of flexors and extensors?

• To prevent muscle hypertrophy

• To avoid muscle imbalance and injury

• To increase flexibility

• To enhance cardiovascular fitness