Ratio of bone length
Although the upper arm is slightly shorter than the scapula, it appears nearly equal in length when examining the dog. This illusion is caused by the fact that the point of the elbow is included in the visual measurement of the length of the upper arm.
A long upper arm is required so that the front leg is set down well behind the dog's forechest.
If the upper arm is too short, the front legs will be too far forward. (Fox Terrier front)
In a Rat Terrier, the scapula humerus and upper arm(radius&ulna)should all be approximately the same length.
Although the upper arm is slightly shorter than the scapula, it appears nearly equal in length when examining the dog. This illusion is caused by the fact that the point of the elbow is included in the visual measurement of the length of the upper arm.
A long upper arm is required so that the front leg is set down well behind the dog's forechest.
If the upper arm is too short, the front legs will be too far forward. (Fox Terrier front)
In a Rat Terrier, the scapula humerus and upper arm(radius&ulna)should all be approximately the same length.
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