Spine of scapula
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Spine of Scapula[edit | edit source]
The Spine of Scapula is a prominent bony feature on the scapula (shoulder blade) in the human body. It is a ridge that runs diagonally across the dorsal side of the scapula, dividing it into two regions: the supraspinous and infraspinous fossae.
Anatomy[edit | edit source]
The spine of the scapula starts from the medial border and extends towards the lateral border. It is a thin, flat bone that is roughly triangular in shape. The spine is elevated and forms a ridge that is palpable under the skin. It ends laterally in an enlarged, roughened area known as the Acromion.
Function[edit | edit source]
The spine of the scapula serves as an attachment site for several muscles, including the trapezius and deltoid. It also provides a boundary between the supraspinatus and infraspinatus muscles, which are part of the rotator cuff.
Clinical Significance[edit | edit source]
Injuries or abnormalities of the spine of the scapula can lead to shoulder pain and limited range of motion. Conditions such as scapular fractures or winged scapula can affect the spine of the scapula.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD