Forelimb - Anatomy & Physiology
Revision as of 16:44, 13 August 2008 by Bepocock (talk | contribs) (→Common structures of the Proximal Forelimb and Shoulder)
Common structures of the Proximal Forelimb and Shoulder
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 at the Glenoid cavity
Joints of the Proximal Forelimb
Common Structures of the Distal Forelimb
Joints of the Distal Forelimb
Muscles of the Forelimb
- Extrinsic Musculature
- Deep Musculature
- Muscles of the Elbow
- Muscles of Supination and Pronation
- Muscles of the Carpal and Digital Joints