Anatomy & Physiology of the Shoulder Joint [Abduction/Adduction & Flexion/Extension]

The video tutorial covers the movements of the scapula and shoulder, focusing on abduction, adduction, flexion, and extension. It explains the anatomy and function of key muscles like the deltoid, latissimus dorsi, and pectoralis major, and their roles in these movements. The tutorial also highlights the importance of scapular movements in shoulder actions and provides examples of exercises that involve these movements.

What is the primary function of the shoulder girdle in relation to the shoulder joint?

• To increase the range of motion of the shoulder joint

• To stabilize the shoulder joint and facilitate scapular movement

• To provide energy for shoulder movements

• To protect the shoulder joint from injury

Which muscle is primarily responsible for shoulder abduction?

• Teres major

• Latissimus dorsi

• Pectoralis major

• Deltoid

What role do the middle fibers of the deltoid play in shoulder movement?

• They facilitate shoulder extension

• They facilitate shoulder flexion

• They facilitate shoulder abduction

• They facilitate shoulder adduction

Which muscle assists the latissimus dorsi in shoulder adduction?

• Trapezius

• Infraspinatus

• Supraspinatus

• Teres major

What is the primary movement of the scapula during shoulder abduction?

• Upward rotation

• Retraction

• Downward rotation

• Protraction

Which muscle is NOT involved in upward rotation of the scapula?

• Pectoralis minor

• Rhomboid minor

• Serratus anterior

• Trapezius

Which muscle is primarily responsible for shoulder flexion?

• Teres major

• Deltoid

• Pectoralis major

• Latissimus dorsi

What scapular movement accompanies shoulder flexion?

• Upward rotation

• Downward rotation

• Protraction

• Retraction

Which muscle is involved in both shoulder adduction and extension?

• Latissimus dorsi

• Deltoid

• Teres minor

• Pectoralis major

What is the role of the rhomboids in shoulder extension?

• They facilitate scapular protraction

• They facilitate scapular retraction

• They facilitate upward rotation

• They facilitate downward rotation