Superficial blood vessels of the head

This video tutorial explores the anatomy and function of shoulder muscles, focusing on the rotator cuff, which includes the supraspinatus, infraspinatus, teres minor, and subscapularis. These muscles stabilize the humeral head in the glenoid cavity and facilitate arm rotation. Additional muscles like the deltoids, coracobrachialis, and pectoralis major and minor also contribute to shoulder movement. The video concludes with a call to explore more resources on Kenhub.

Which group of muscles is primarily responsible for stabilizing the shoulder joint?

• Latissimus Dorsi

• Trapezius

• Rotator Cuff

• Deltoids

What is the main function of the rotator cuff muscles?

• Flexing the arm

• Adducting the arm

• Stabilizing the humeral head

• Elevating the scapula

Which muscle works with the supraspinatus to abduct the arm?

• Pectoralis Major

• Deltoids

• Latissimus Dorsi

• Trapezius

Which muscles are involved in flexing and adducting the scapula and humerus?

• Latissimus Dorsi and Teres Major

• Trapezius and Rhomboid Major

• Deltoids and Supraspinatus

• Pectoralis Major and Minor

What action do the trapezius, rhomboid major, and levator scapula muscles perform?

• Rotate the arm

• Elevate the scapula

• Flex the arm

• Abduct the arm