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Forelimb - Anatomy & Physiology (view source)
Revision as of 16:42, 13 August 2008
, 16:42, 13 August 2008→Common structures of the Proximal Forelimb and Shoulder
==Common structures of the Proximal Forelimb and Shoulder==
==Common structures of the Proximal Forelimb and Shoulder==
*'''[[Scapula - Anatomy and Physiology|Scapula]]'''
*'''[[Scapula - Anatomy and Physiology|Scapula]]'''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 defines '''Infraspinous''' and '''Supraspinous''' '''Fossae''', inhabited by muscles accordingly
**The spine serves as a point of attachment for the '''trapezius''' muscle
**The spine culminates in the '''acromion''' in all but the horse and pig
**Medial muscle attachment comprises mostly of the '''subscapularis''', with the '''serratus ventralis''' attaching dorsally
**The Scapula articulates with the '''[[Humerus - Anatomy & Physiology|Humerus]]''' at the '''Glenoid cavity'''
*'''[[Clavicle - Anatomy & Physiology|Clavicle]]'''
*'''[[Clavicle - Anatomy & Physiology|Clavicle]]'''
*'''[[Humerus - Anatomy & Physiology|Humerus]]'''
*'''[[Humerus - Anatomy & Physiology|Humerus]]'''