Biomechanics Of Shoulder Joint Quiz

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| By Drgeej
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Drgeej
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  • 1/10 Questions

    Which of these is not specifically a joint movement?

    • Flexion
    • Breathing
    • Adduction
    • All of these
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About This Quiz

How much do you know about the biomechanics of shoulder joint? Can you answer some challenging questions in this quiz? If yes, then try your luck, and you will not only test your knowledge about biomechanics of the shoulder joint, but you will also learn something you may not have known before. So, take this challenge and score at least 70 percent on this quiz. Sounds easy, right? Well, it's not that easy. Let's see what you have got!

Biomechanics Of Shoulder Joint Quiz - Quiz

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  • 2. 

    Moving the arm toward the midline of the body is abduction.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Abduction refers to the movement of a body part away from the midline of the body, not towards it. Therefore, the statement "Moving the arm toward the midline of the body is abduction" is incorrect. The correct term for moving the arm towards the midline of the body is adduction.

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  • 3. 

    A rotator cuff tear is the tear of the rotator cuff tendon.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because a rotator cuff tear refers to the tearing of the rotator cuff tendon. The rotator cuff is a group of tendons and muscles that surround the shoulder joint, and when these tendons tear, it can cause pain, weakness, and limited range of motion in the shoulder. Therefore, the correct answer is true.

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  • 4. 

    Most rotator cuff tears and impingement happen with this muscle.

    • Supraspinatus

    • Infraspinatus

    • Teres Minor

    • Subscapularis

    Correct Answer
    A. Supraspinatus
    Explanation
    The supraspinatus muscle is the most commonly affected muscle in cases of rotator cuff tears and impingement. It is located on the top of the shoulder blade and plays a crucial role in shoulder movement and stability. Its tendon passes through a narrow space called the subacromial space, which can become compressed or irritated, leading to impingement and tears. Therefore, the supraspinatus muscle is often involved in these shoulder injuries.

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  • 5. 

    Moving the arm away from the midline of the body is ______________.

    • Bending

    • Alteration

    • Rotation

    • Abduction

    Correct Answer
    A. Abduction
    Explanation
    Moving the arm away from the midline of the body is Abduction. Abduction refers to the movement of a body part towards the midline of the body. In this case, when the arm is moved away from the midline, it is moving towards the midline, which is abduction.

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  • 6. 

    Which one is not a function of the supraspinatus muscle?

    • Rotates the head of the humerus medially (internal rotation)

    • Contraction leads to abduction of the arm at the shoulder joint

    • Helps to resist the inferior gravitational forces placed across the shoulder joint due to the downward pull from the weight of the upper limb

    • Helps to stabilize the shoulder joint by keeping the head of the humerus firmly pressed medially against the glenoid fossa of the scapula

    Correct Answer
    A. Rotates the head of the humerus medially (internal rotation)
    Explanation
    The supraspinatus muscle is responsible for abduction of the arm at the shoulder joint, helping to resist the inferior gravitational forces placed across the shoulder joint, and stabilizing the shoulder joint by keeping the head of the humerus firmly pressed medially against the glenoid fossa of the scapula. However, it does not rotate the head of the humerus medially (internal rotation).

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  • 7. 

    Which muscle is a powerful defense to the front of the shoulder joint, preventing displacement of the head of the humerus?

    • Infraspinatus

    • Supraspinatus

    • Teres Minor

    • Subscapularis

    Correct Answer
    A. Subscapularis
    Explanation
    The subscapularis muscle is a powerful defense to the front of the shoulder joint, preventing displacement of the head of the humerus. It is one of the four muscles that make up the rotator cuff and is located on the anterior side of the scapula. Its main function is to internally rotate and adduct the arm, but it also plays a significant role in stabilizing the shoulder joint and preventing dislocation.

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  • 8. 

    As part of the rotator cuff, these two muscles help hold the humeral head in the glenoid cavity of the scapula. They work in tandem with the posterior deltoid to externally (laterally) rotate the humerus, as well as perform adduction, extension, and transverse extension.

    • Infraspinatus

    • Teres Minor

    • Supraspinatus

    • Subscapularis

    Correct Answer(s)
    A. Infraspinatus
    A. Teres Minor
    Explanation
    The infraspinatus and teres minor muscles are part of the rotator cuff and help hold the humeral head in the glenoid cavity of the scapula. They work together with the posterior deltoid to externally rotate the humerus and also perform adduction, extension, and transverse extension. These muscles play a crucial role in stabilizing the shoulder joint and allowing for various movements of the arm.

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Quiz Review Timeline (Updated): Jun 25, 2025 +

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  • Current Version
  • Jun 25, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 22, 2012
    Quiz Created by
    Drgeej
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