Changes

Jump to navigation Jump to search
Line 31: Line 31:  
*Paired collateral ligaments attach the epicondyles to the tuberosities of the radius and ulna.
 
*Paired collateral ligaments attach the epicondyles to the tuberosities of the radius and ulna.
   −
==Common Structures of the Distal Forelimb==
+
==Structures of the Distal Forelimb==
      Line 38: Line 38:  
Carpal bones comprise two rows:
 
Carpal bones comprise two rows:
 
*Proximally, (mediolaterally), radial, intermediate, ulnar and accessory bones
 
*Proximally, (mediolaterally), radial, intermediate, ulnar and accessory bones
**The accessory bone serves as a landmark for palpation
+
*Distally, 1st is missing, 2 and 3 are fused
*Distally, bones are numbered 1-5, though 5 is always fused with 4
  −
*A small [[Bones and Cartilage - Anatomy & Physiology#Types of Bone|'''sesamoid''']] bone embedded in the medial tissues of the joint can sometimes be mistaken as a chip fracture
      
===Metacarpal bones===
 
===Metacarpal bones===
   −
The number of metacarpals varies widely among species, as the demand for their function changes: '''plantigrade''', or flat-footed, animals requiring the full complement of five metacarpal bones; the number is reduced in the upright stature of '''digitigrade''' animals such as the dog and cat, and shows the extreme in '''unguligrades''' like the horse, who depends entirely on the third metacarpal bone for its stature.
+
These are covered in detail in the [[Bovine Phalanges - Anatomy & Physiology|bovine phalanges]] section.
*Colloquially, the third metacarpal of the horse is known as the '''canon''' bone, and the vestigial 2 and 4 as '''splint bones'''
      
==Joints of the Distal Forelimb==
 
==Joints of the Distal Forelimb==
3,320

edits

Navigation menu