Changes

===[[Forelimb - Anatomy & Physiology#Humerus|Humerus]]===

===[[Forelimb - Anatomy & Physiology#Humerus|Humerus]]===

*The '''intertubercular groove''' has a central sagittal ridge.

The '''lesser and greater tubercles''' on the lateral and medial sides of the proximal humerus, respectively, are nearly equally well developed. Both tubercles divided into two parts (cranial and caudal). The tubercles are separated by an '''intertubercular groove''', which is wide and has a central saggital ridge ('''intermediate tubercle'''). This ridge fits into a depression on the deep surface of the biceps tendon and restricts movement of the tendon relative to the humerus in the standing horse.

*The '''lesser tubercle''' is divided into two parts.

The body of the bone bears the '''teres major tuberosity''' on its medial surface and the '''deltoid tuberosity''', which is opposite, on the lateral surface.

*The '''teres major tuberosity''' is found on the medial shaft, just proximal to its middle.  

The distal end forms a cylindrical '''condyle''' that transfers weight to the radius. On the lateral aspect of the condyle there is a small '''saggital ridge''' with grooves to allow articulation with the radius and ulna. The medial and lateral '''epicondlyes''' and '''lateral supracondylar crest''' are palpable landmarks. A shallow '''radial fossa''' is just proximal to the condyle on the cranial surface. The deeper '''olecranon fossa''', between the two epicondyles, lies opposite the radial fossa on the caudal surface. There is no supratrochlear foramen between the two fossae in horses.

 

===[[Forelimb - Anatomy & Physiology#Radius and Ulna|Radius and Ulna]]===

===[[Forelimb - Anatomy & Physiology#Radius and Ulna|Radius and Ulna]]===