84 LABORATORY MANUAL OF ANTHROPOMETRY 



II. INDICES 



1. Caliber index (2 : 1] Diddle circumference of shaft X '100 



maximum length 



2. Claiicle-humeral index [1 : 1 of humerus] 



maximum length of clavicle X 100 

 maximum length of humerus 



ARM AND HAND 

 Humerus 



I. MEASUREMENTS 



1. Greatest maximum length [AB, Fig. 31]; taken with the osteometric 

 board. 



2. Breadth of the proximal epiphysis [AC] ; taken from head to greater 

 tuberosity, so as to get the greatest measurement. Use the slide compass 

 of the rod compass. 



3. Breadth of the distal epiphysis [BE]; measured between the two 

 condyles, to get the greatest measurement. On about the same plane 

 as No. 2. 



4. Circumference of the diaphysis at the upper third; this is preferred 

 to that taken in the middle of the shaft, as it avoids the deltoid eminence. 



5. Least circumference of the diaphysis; this is found at about the 

 second third, distal to the deltoid eminence, and just proximal to 

 the beginning of the supra-condyloid ridges. It is usually about a 

 centimeter distal to the nutrient foramen. 



6. Proximo-distal (longitudinal) diameter of the head; taken from a 

 point in the edge of the articular surface of the bone across to the opposite 

 side, taken in a plane parallel to the long axis of the bone. SC. 



7. Dorso-ventral (transverse} diameter of the head; taken in the same 

 way, but at right angles to the previous one, and at right angles to the 

 long axis of the bone. 



8. Circumference of the head; measured around the margin of the 

 articular surface, with the tape. 



II. INDICES 



least circumference of diaphysis X 100 



1. Caliber index [5 : 1] -. , f^ 



maximum length 



, . -. transverse diam. of head X 100 



2. Index of the head [7: 6] rr r . i p 



longitudinal diam. ol head 



III. ANGLES 



1. Angle of torsion; the angle formed by the line connecting the 

 cener fo the head and the greater tuberosity, when projected upon the 



