MEASUREMENT OF UPPER LIMB BONE FOR CEREBRAL HEMISPHERE DOMINANCE IN WESTERN RAJASTHAN

Abstract

Aims and objective: - Most of the long bone of the body are developed from endochondral
ossification . The growth of the length of long bone depends upon the cell present in the proliferative
zone of epiphyseal plate. Growth of diameter depends mainly on the continous deposition of sub
periosteal region of the bone as periosteal ossification. As most of the people are right handed,the right
dominance coincides with the dominant left cerebral hemisphere.
Material and method; - This study contributed 20 pairs of upper limb bones of the unknown sex.
Bone of arms Humerus, bones of forearm Radius,Ulna of both sides are collected from the department
of Anatomy , Dr S.N. Medical college ,Jodhpur . Length is measured on an Osteometric Board and
Circumference measured by Vernier Caliper.
Result: - Length and circumference of Humerus, Radius and Ulna of right sided is more longer shows
the right dominance coincides with left Cerebral Hemisphere in the Western Rajasthan.
Conclusion: - The present study conducted on the measurement of long bone of upper limb in western
Rajasthan concluded that bones of right upper extremity are longer and more in circumference the left
sided. Right dominance of upper limb bone seems to be dominated left cerebral hemisphere.
Measurement of length and circumference of upper limb bone can be attributed to the type of
movement.