How Do You Spell SACRAL INDEX?

1. The sacral index refers to a numerical value obtained by measuring and analyzing the dimensions of the sacrum, which is the triangular bone located at the base of the spinal column, between the two hip bones. The sacral index is used in anthropometry, a branch of anthropology that deals with the measurements and proportions of the human body, especially to examine and compare the differences between individuals or populations.

   The sacral index is calculated by dividing the breadth of the sacrum (from one side to the other) by its length, and then multiplying the result by 100. The resulting value, expressed as a percentage, represents a quantitative measure of the width-to-length ratio of the sacrum.

   This index provides valuable information in the study of human anatomy, skeletal remains, and evolutionary biology. It aids in understanding variations and differences between races, sexes, and even different species. For example, a higher sacral index is often associated with a broader and less elongated sacrum, which can indicate certain characteristics such as pelvic shape, mobility, as well as potentially offering insights into locomotion and posture. However, it is important to note that the sacral index is a single measurement and should be considered in conjunction with other anthropometric factors to obtain a comprehensive understanding of anatomical variations.

2. A ratio obtained by multiplying the breadth of the sacrum by 100 and dividing by the length.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for SACRAL INDEX

The term "sacral index" is derived from two different sources:

1. "Sacral" comes from the Latin word "sacrum", meaning "sacred" or "holy". In anatomy, the term refers to the triangular bone at the base of the spine that is composed of fused vertebrae.

2. "Index" comes from the Latin word "index", which originally meant "indicate" or "point out". Over time, it also came to mean "a guiding principle" or "a list". In this context, the "sacral index" is a measurable indicator or ratio used in anthropology and physical anthropology to assess the shape of the sacrum bone.

Therefore, the combination of "sacral" and "index" forms a term that refers to a measurement or indicator related to the sacrum bone.