Changes

The Scapula forms the basis of the shoulder region, providing points of attachment of extrinsic and intrinsic muscles.  It is held in place by a synsarcosis of muscles and does not form a conventional articulation with the trunk. In ungulates, the dorsal border is extended by a scapular cartilage, which enlarges the area for muscle attachment.  This ossifies with age. The bone is roughly triangular, with a prominent '''spine''' that can be palpated through the skin.

The Scapula forms the basis of the shoulder region, providing points of attachment of extrinsic and intrinsic muscles.  It is held in place by a synsarcosis of muscles and does not form a conventional articulation with the trunk. In ungulates, the dorsal border is extended by a scapular cartilage, which enlarges the area for muscle attachment.  This ossifies with age. The bone is roughly triangular, with a prominent '''spine''' that can be palpated through the skin.

:The spine:

:The spine:

::defines '''Infraspinous''' and '''Supraspinous''' '''Fossae''', inhabited by muscles accordingly

::defines '''infraspinous''' and '''supraspinous''' '''fossae''', inhabited by the infraspinatus and supraspinatus muscles respectively

::serves as a point of attachment for the '''trapezius''' muscle

::serves as a point of attachment for the '''trapezius''' muscle

::culminates in the '''acromion''' in all but the horse and pig

::culminates in the '''acromion''' in all but the horse and pig