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Anatomy and Function of Shoulder Girdle Muscles Quiz

#1

Which muscle is responsible for abduction of the shoulder joint?

Deltoid
Explanation

Abducts the shoulder.

#2

Which muscle is involved in stabilizing the shoulder joint during movements?

Supraspinatus
Explanation

Stabilizes the shoulder joint.

#3

Which muscle is commonly referred to as the 'rotator cuff'?

Supraspinatus
Explanation

Part of the rotator cuff.

#4

Which muscle is responsible for protraction of the scapula?

Serratus anterior
Explanation

Responsible for scapular protraction.

#5

Which muscle is involved in shoulder adduction?

Pectoralis major
Explanation

Involved in shoulder adduction.

#6

Which muscle is primarily responsible for internal rotation of the shoulder?

Subscapularis
Explanation

Internally rotates the shoulder.

#7

Which muscle contributes to the extension of the shoulder joint?

Teres major
Explanation

Contributes to shoulder extension.

#8

Which muscle is responsible for shoulder horizontal abduction?

Pectoralis major
Explanation

Performs shoulder horizontal abduction.

#9

Which muscle is involved in both shoulder flexion and horizontal adduction?

Coracobrachialis
Explanation

Involved in shoulder flexion and horizontal adduction.

#10

Which muscle assists in shoulder external rotation when the arm is abducted?

Infraspinatus
Explanation

Assists in shoulder external rotation.

#11

Which muscle assists in the upward rotation of the scapula?

Serratus anterior
Explanation

Assists in upward rotation of scapula.

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