Changes

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

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

The two bones are fused, so all movement is in a sagittal plane, with very little pronation and supination. The ulna tapers out distally at the middle of the radius shaft. For the proximal quarter of the radius, the bones are joined by ligaments. There is an '''interosseous space''' for the passage of blood vessels and distal to this the bones are fused. The lateral '''styloid process''' of the radius is in fact, developmentally, the distal end of the ulna. It appears as a separate ossification centre in a foal until it fuses at about a year old.

The two bones are fused, so all movement is in a sagittal plane, with very little pronation and supination. The fusion of the two bones is interrupted by '''interosseous space''' in the proximal third of antebrachium, which serves as a passage for blood vessels.

 

On the proximocranial aspect of the radius is the '''radial tuberosity''', the point of insertion of the biceps tendon.  At the distal end of the radius are the medial and lateral ''''styloid processes'''. The lateral styloid process of the radius is in fact, developmentally, the distal end of the ulna.

 

The ulna tapers out distally at the mid antebrachium. For the proximal quarter of the radius, the bones are joined by ligaments. It appears as a separate ossification centre in a foal until it fuses at about a year old. The '''olecranon tuberosity''' is located on its proximal extremity.

 

===[[Forelimb - Anatomy & Physiology#Carpal Bones|Carpal Bones]]===

===[[Forelimb - Anatomy & Physiology#Carpal Bones|Carpal Bones]]===