BOC Athletic Trainer Practice Test 2025 – Complete Exam Prep

Question: 1 / 400

How is the shoulder joint classified?

Hinge joint

Saddle joint

Ball-and-socket joint

The shoulder joint is classified as a ball-and-socket joint, which is characterized by a spherical head of one bone fitting into a cup-like socket of another bone, allowing for a wide range of motion in multiple directions. This type of joint structure permits movements such as flexion, extension, abduction, adduction, rotation, and circumduction, making it one of the most mobile joints in the human body.

In the case of the shoulder joint, the head of the humerus (the bone of the upper arm) fits into the glenoid cavity of the scapula (shoulder blade), forming the ball-and-socket configuration. This anatomical design is what enables the extensive mobility and stability required for various shoulder movements, whether in athletic activities or daily life tasks.

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Pivot joint

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