Frontal sinus size in Eskimo populations

Hanson, Christine L.; Owsley, Douglas W.

doi:10.1002/ajpa.1330530209

Cited by 80 publications

(73 citation statements)

References 5 publications

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“…On the other hand, this seems to be irrelevant if a trait is strongly determined by unilateral functional demands rather than randomly distributed differences. For instance, Kolesnikov & An (1999) mentioned a high degree of asymmetry in the nasal aperture and Hanson & Owsley (1980) declared right-left asymmetry in the frontal sinuses. Both structures occupy areas in the median line but are misshaped by stronger pressure of the airflow in one of the airways.…”

Section: Discussionmentioning

confidence: 99%

The Asymmetry and Modularity of the Hyoid Bone

et al. 2014

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SUMMARY:Morphological variation is a result of interplay among multiple intervening factors. For hyoid bones, the shape and size differences have been scarcely covered in the literature and in majority limited to studies of sexual dimorphism or age dependency. To our knowledge, the human hyoid bone, in complete opposite to other cranial bones, has not been fully utilized to address development questions in terms of asymmetry or modularity. In the present paper, we used landmark-based methods of geometric morphometrics and multivariate statistical approach to study human hyoid morphology represented by the hyoid body and greater horns in a sample of 211 fused and non-fused bones. Within a sample variation analysis, we showed that the hyoid bone is, by nature, asymmetrical bone which exhibits both directional and fluctuating types of asymmetry and is composed of well-integrated anatomical elements for which the biomechanical load of attached muscles is the most determining factor of variation. Yet, the covariance and evidence of unequal amount of fluctuating asymmetry among modules suggests a certain degree of independence during early stages of development.

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Section: Discussionmentioning

confidence: 99%

The Asymmetry and Modularity of the Hyoid Bone

et al. 2014

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“…2b). This method was selected for the current study because it is easy to apply and replicate, and several previous researchers recognized it as an accepted methodology (Brothwell et al, 1968;Buckland-Wright, 1970;Hanson and Owsley, 1980;Ikeda, 1980;Koertvelyessy, 1972;Libersa and Faber, 1958;Ribeiro, 2000;Strek et al, 1992). The baseline was added to the traced outline using a straightedge, which was situated on the radiograph to form a line tangent to the upper margin of each orbit; the line was then drawn in, using the straightedge as a guide.…”

Section: Methodsmentioning

confidence: 99%

“…Others used larger samples, but addressed somewhat different questions such as applying standard measurements and the effect of experience level on the ability to make a correct match (Gulisano et al, 1987;Kullman et al, 1990;Ribeiro, 2000). Most investigations of frontal sinus variability focused on intergroup variation and often described differences in terms of linear dimensions of the frontal sinus from the radiograph, including maximum height and lateral extension or an index based on these measurements, surface areas, or asymmetry of left vs. right sinus lobes (Brothwell et al, 1968;Buckland-Wright, 1970;Gulisano et al, 1987;Hanson and Owsley, 1980;Harris et al, 1987;Koertvelyessy, 1972;Strek et al, 1992).…”

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confidence: 98%

Assessing the variation in individual frontal sinus outlines

Christensen

2005

Am. J. Phys. Anthropol.

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It is often suggested that the frontal sinus morphology of no two individuals is alike, and that the configuration of the frontal sinus is as unique to an individual as his or her fingerprints. However, no empirical, quantitative testing of the uniqueness of frontal sinus outlines has ever been performed. Such testing is necessary for frontal sinus identifications to be admissible in many courts. This study investigated frontal sinus outline variability using elliptic Fourier analysis (EFA), a geometric morphometric approach that fits a closed curve to an ordered set of data points, generating a set of coefficients that can be used to reproduce the outline. Two-dimensional representations of 808 frontal sinuses (as seen in posterior-anterior cranial radiographs) were digitized, and differences in their shapes were assessed quantitatively by comparing the Euclidean distances between EFA-generated outlines. Results show that Euclidean distances between outlines of different individuals are significantly larger than those between replicates of the same individual, and typicalities show that the probability of finding two different individuals with Euclidean distances less that that between a particular case's replicate is very small. Thus, there is a quantifiable and significant difference between the shapes of individuals' frontal sinus outlines.

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“…The studies of Hanson and Owsley and Pond et al shows similar findings. 25,26 The width of the frontal sinus also increases from cervical stages 1 to 6. The increase in width is greater in males than in females.…”

Section: Discussionmentioning

confidence: 97%

Relation between Frontal Sinus Morphology and the Cervical Vertebral Maturation for the Evaluation of the Skeletal Maturity among Solapur Population: A Cross Sectional Study

Dodmani¹

2018

jmscr

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Frontal sinus size in Eskimo populations

Cited by 80 publications

References 5 publications

The Asymmetry and Modularity of the Hyoid Bone

The Asymmetry and Modularity of the Hyoid Bone

Assessing the variation in individual frontal sinus outlines

Relation between Frontal Sinus Morphology and the Cervical Vertebral Maturation for the Evaluation of the Skeletal Maturity among Solapur Population: A Cross Sectional Study

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