Deltoid muscle level

This tutorial explores the anatomy of the shoulder, focusing on the rotator cuff and its associated injuries. It begins with an introduction to rotator cuff injuries, followed by a detailed explanation of body planes and cross-sectional anatomy. The tutorial then identifies the bones and muscles of the shoulder, including the humerus, scapula, deltoid, and rotator cuff muscles. It concludes with a discussion on rotator cuff injuries, their symptoms, and treatment options, providing a comprehensive understanding of shoulder anatomy and function.

What is a common cause of rotator cuff injuries?

• Twisting the ankle

• Overexertion of shoulder muscles

• Falling on the knee

• Lifting heavy objects with legs

Which plane divides the body into anterior and posterior parts?

• Oblique plane

• Coronal plane

• Transverse plane

• Sagittal plane

What is the primary function of the glenohumeral ligaments?

• To support the spine

• To protect the heart

• To stabilize the shoulder joint

• To attach muscles to bones

Which bone is known as the shoulder blade?

• Scapula

• Clavicle

• Humerus

• Radius

Which muscle is the most superficial in the shoulder?

• Pectoralis major

• Trapezius

• Deltoid

• Rhomboid major

What is the function of the subscapularis muscle?

• To extend the arm

• To rotate the arm medially

• To flex the arm

• To abduct the arm

Which muscle is located superior to the spine of the scapula?

• Teres minor

• Infraspinatus

• Supraspinatus

• Subscapularis

What is a common symptom of a rotator cuff injury?

• Swelling in the ankle

• Numbness in the fingers

• Dull ache in the shoulder

• Sharp pain in the knee

Which muscle is not visible in the cross-section but is part of the rotator cuff?

• Supraspinatus

• Infraspinatus

• Subscapularis

• Teres minor

What treatment options are available for rotator cuff injuries?

• Physical therapy

• All of the above

• Rest and ice

• Surgery