Craniometry is the measurement of cranial features in order to classify people according to race, criminal temperament, intelligence, etc. Cephalic index also known as length-breadth index is derived from Greek word “kephale” meaning “head,” the Greek word “ikos” meaning “pertaining to,” and the Latin word “index” meaning “that which points out”. It is the ratio of the maximum breadth (width) of the head …

The slender S-shaped clavicle (derived from latin word clāvis meaning key) is the only direct skeletal attachment between trunk and the upper limb. Other names for Clavicle are:

Collar bone
Beauty bone

Peculiarities of Clavicle:

It has no medullary cavity
It is the first bone to ossify in the fetus (5th-6th week)
It is the only long bone having 2 primary centers of ossification (others have …