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Questions and Answers
What is the function of the Subscapularis?
What is the function of the Subscapularis?
Medially rotates arm
What is another name for the shoulder blade?
What is another name for the shoulder blade?
Scapula
What is the breastbone commonly referred to as?
What is the breastbone commonly referred to as?
Sternum
What does the Sternoclavicular Joint (SC) connect?
What does the Sternoclavicular Joint (SC) connect?
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What is another name for the collar bone?
What is another name for the collar bone?
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What is the Acromioclavicular Joint (AC)?
What is the Acromioclavicular Joint (AC)?
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What is the highest portion of the shoulder called?
What is the highest portion of the shoulder called?
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What is the function of the Subacromial Bursae?
What is the function of the Subacromial Bursae?
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What muscle abducts the arm?
What muscle abducts the arm?
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What muscle is responsible for lateral rotation at the shoulder?
What muscle is responsible for lateral rotation at the shoulder?
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Which muscle rotates the arm laterally?
Which muscle rotates the arm laterally?
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Study Notes
Shoulder Anatomy Terms
- Subscapularis: Muscle responsible for medially rotating the arm.
- Scapula: Known as the shoulder blade, a crucial part of the shoulder girdle.
- Sternum: Also referred to as the breastbone; it plays an essential role in thoracic stability.
- Sternoclavicular Joint (SC): Joint formed by the proximal end of the clavicle and the manubrium of the sternum; features a fibrocartilaginous disk for cushioning and stability, despite a weak bony arrangement.
- Clavicle: Commonly called the collar bone; it connects the arm to the body and helps stabilize shoulder movements.
- Acromioclavicular Joint (AC): A simple joint where the scapula's bony projections meet the clavicle at the shoulder's top, facilitating arm movement.
- Acromion Process: The highest point of the shoulder, providing structural support and attachment for muscles.
- Subacromial Bursae: A fluid-filled sac located between the acromion process and the supraspinatus muscle, reducing friction during shoulder movement.
- Supraspinatus: A muscle that aids in arm abduction, essential for raising the arm away from the body.
- Infraspinatus: Muscle that is involved in the lateral rotation of the shoulder, contributing to overall shoulder stability and movement.
- Teres Minor: A muscle that assists in lateral rotation of the arm and plays a role in shoulder joint stability.
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Description
Test your knowledge on the anatomy of the shoulder with this quiz. Learn about key structures including muscles, bones, and joints that comprise the shoulder region. Perfect for students of anatomy and healthcare professionals.
