Some proportionate measurements, which are difficult to measure directly from the body, i. e. , back neck width , and therefore based on averages.

Objective To measure the width of space in front of the femoral neck at different age of normal children for diagnosis such as hip disease in children as bilateral transient synovitis of the hip.

Body: the blue cat of Russia has a slender figure, neck is long and thin head: Point is thin the head width face, the ear is spacious.