Changes

*The spine culminates in the '''acromion''' in all but the horse and pig

*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

*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'''

*The Scapula articulates with the '''humerus''' at the '''Glenoid cavity'''

'''''Clavicle'''''

'''''Clavicle'''''

'''''Humerus'''''

'''''Humerus'''''

The Humerus is the long bone of the forearm, articulating with the [[Scapula - Anatomy and Physiology|Scapula]] to form the [[Shoulder Joint - Anatomy & Physiology|Shoulder Joint]] and the [[Radius - Anatomy & Physiology|Radius]] and [[Ulna - Anatomy & Physiology|Ulna]] to form the [[Elbow Joint - Anatomy & Physiology|Elbow Joint]].  In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species.   

The Humerus is the long bone of the forearm, articulating with the '''scapula''' to form the '''shoulder''' and the '''radius''' and '''ulna''' to form the '''elbow'''.  In situ, it lies obliquely along the ventral thorax and is more horizontal in larger species.   

*The head of the humerus comprises '''greater''' and '''lesser tubercles''', separated by an '''intertubercular groove''' through which runs the tendon of the '''biceps brachii'''

*The head of the humerus comprises '''greater''' and '''lesser tubercles''', separated by an '''intertubercular groove''' through which runs the tendon of the '''biceps brachii'''