Open AccessMorphometric study of nasal bones and piriform apertures in human skulls
Author(s) -
Mohini M Joshi,
S. K. Chavan
Publication year - 2022
Publication title -
indian journal of clinical anatomy and physiology
Language(s) - English
Resource type - Journals
eISSN - 2394-2126
pISSN - 2394-2118
DOI - 10.18231/j.ijcap.2021.060
Subject(s) - anatomy , aperture (computer memory) , population , skull , piriform cortex , biology , dentistry , medicine , central nervous system , physics , endocrinology , environmental health , acoustics
The piriform aperture (PA) is the skeletal aperture located in the middle part of the face. There are many variations in morphometric measurements of nasal bones, piriform apertures and their shapes in different population. Objective of present study was to study morphological and morphometric features of nasal bone and piriform aperture. Adult human skulls available from collection of dried skulls were used for study purpose. Skull bones of unknown age and sex were obtained. Height, width of nasal bone, height, upper and lower width of piriform aperture, shapes of nasal bone and piriform aperture were observed. Height, upper width and lower width of piriform aperture were greater in male as compared to female. This difference was not statistically significant for upper width of piriform aperture (p=0.49) and for lower width of piriform aperture (p= 0.65) while the difference in height of piriform aperture was statistically significant. (p <0.0001).Differences in Height and width of nasal bone were not statistically significant among male and female nasal bones. Most common shape of nasal bone observed was Type A followed by Type B and C. Most common shape of piriform aperture was triangular to oval (50.00) in both the gender. Majority finding of the present study are in concordance with Indian population studies while significant differences have been noted in comparison to the morphometric measurements of Turkish, Korean, Brazilian and Anatolian population. These variations might be because of differences in ethnicity.