Variant morphogenesis of squamous part of occipital bone in human skulls

B. V. Murlimanju, L. V. Prabhu, M. T. Paul, M. M. Pai, A. Krishnamurthy, A. Rai

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Introduction: The interparietal part of squamous occipital bone which lies above the highest nuchal line develops from membranous ossification. The failure of fusion of ossification centres in this region leads to the development of interparietal and pre-interparietal bones. These bones are very rare in occurrence compared to the sutural bones. In this study, the objectives were to find the incidence of interparietal and preinterparietal bones in South Indian population. Material and methods: The study included a total number of 78 human adult dried skulls of South Indian population. The skulls were studied for the gross incidence, sexual dimorphism and the number of fragments of the interparietal and preinterparietal bones. Results: From our observations, the interparietal bone was observed in only 3 skulls (3.8%) and the preinterparietal bones were observed in 8 (10.3%) skulls. The incidence rates of interparietal and preinterparietal bones were higher in females (2:1 and 5:3). The interparietal bone was single in two cases and was fragmented in the other case. The preinterparietal was single in 5 cases and fragmented in 3 cases. Conclusion: The South Indian population showed higher incidence of preinterparietal bones (10.3%) than interparietal bones (3.8%) and are more common in females. The study has provided additional information on the squamous part of occipital bone, the interparietal and preinterparietal bones, their incidence, sexual dimorphism and morphology. The knowledge of these variants is of importance to the neurosurgeons, radiologists and morphologists.

Original languageEnglish
Pages (from-to)139-141
Number of pages3
JournalJournal of Morphological Sciences
Volume27
Issue number3-4
Publication statusPublished - 2010

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Occipital Bone
Morphogenesis
Skull
Bone and Bones
Incidence
Osteogenesis
Sex Characteristics
Population

All Science Journal Classification (ASJC) codes

  • Cell Biology
  • Anatomy
  • Histology

Cite this

@article{02fd1e0a9863482c83e93c3d3fee4e07,
title = "Variant morphogenesis of squamous part of occipital bone in human skulls",
abstract = "Introduction: The interparietal part of squamous occipital bone which lies above the highest nuchal line develops from membranous ossification. The failure of fusion of ossification centres in this region leads to the development of interparietal and pre-interparietal bones. These bones are very rare in occurrence compared to the sutural bones. In this study, the objectives were to find the incidence of interparietal and preinterparietal bones in South Indian population. Material and methods: The study included a total number of 78 human adult dried skulls of South Indian population. The skulls were studied for the gross incidence, sexual dimorphism and the number of fragments of the interparietal and preinterparietal bones. Results: From our observations, the interparietal bone was observed in only 3 skulls (3.8{\%}) and the preinterparietal bones were observed in 8 (10.3{\%}) skulls. The incidence rates of interparietal and preinterparietal bones were higher in females (2:1 and 5:3). The interparietal bone was single in two cases and was fragmented in the other case. The preinterparietal was single in 5 cases and fragmented in 3 cases. Conclusion: The South Indian population showed higher incidence of preinterparietal bones (10.3{\%}) than interparietal bones (3.8{\%}) and are more common in females. The study has provided additional information on the squamous part of occipital bone, the interparietal and preinterparietal bones, their incidence, sexual dimorphism and morphology. The knowledge of these variants is of importance to the neurosurgeons, radiologists and morphologists.",
author = "Murlimanju, {B. V.} and Prabhu, {L. V.} and Paul, {M. T.} and Pai, {M. M.} and A. Krishnamurthy and A. Rai",
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Variant morphogenesis of squamous part of occipital bone in human skulls. / Murlimanju, B. V.; Prabhu, L. V.; Paul, M. T.; Pai, M. M.; Krishnamurthy, A.; Rai, A.

In: Journal of Morphological Sciences, Vol. 27, No. 3-4, 2010, p. 139-141.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Variant morphogenesis of squamous part of occipital bone in human skulls

AU - Murlimanju, B. V.

AU - Prabhu, L. V.

AU - Paul, M. T.

AU - Pai, M. M.

AU - Krishnamurthy, A.

AU - Rai, A.

PY - 2010

Y1 - 2010

N2 - Introduction: The interparietal part of squamous occipital bone which lies above the highest nuchal line develops from membranous ossification. The failure of fusion of ossification centres in this region leads to the development of interparietal and pre-interparietal bones. These bones are very rare in occurrence compared to the sutural bones. In this study, the objectives were to find the incidence of interparietal and preinterparietal bones in South Indian population. Material and methods: The study included a total number of 78 human adult dried skulls of South Indian population. The skulls were studied for the gross incidence, sexual dimorphism and the number of fragments of the interparietal and preinterparietal bones. Results: From our observations, the interparietal bone was observed in only 3 skulls (3.8%) and the preinterparietal bones were observed in 8 (10.3%) skulls. The incidence rates of interparietal and preinterparietal bones were higher in females (2:1 and 5:3). The interparietal bone was single in two cases and was fragmented in the other case. The preinterparietal was single in 5 cases and fragmented in 3 cases. Conclusion: The South Indian population showed higher incidence of preinterparietal bones (10.3%) than interparietal bones (3.8%) and are more common in females. The study has provided additional information on the squamous part of occipital bone, the interparietal and preinterparietal bones, their incidence, sexual dimorphism and morphology. The knowledge of these variants is of importance to the neurosurgeons, radiologists and morphologists.

AB - Introduction: The interparietal part of squamous occipital bone which lies above the highest nuchal line develops from membranous ossification. The failure of fusion of ossification centres in this region leads to the development of interparietal and pre-interparietal bones. These bones are very rare in occurrence compared to the sutural bones. In this study, the objectives were to find the incidence of interparietal and preinterparietal bones in South Indian population. Material and methods: The study included a total number of 78 human adult dried skulls of South Indian population. The skulls were studied for the gross incidence, sexual dimorphism and the number of fragments of the interparietal and preinterparietal bones. Results: From our observations, the interparietal bone was observed in only 3 skulls (3.8%) and the preinterparietal bones were observed in 8 (10.3%) skulls. The incidence rates of interparietal and preinterparietal bones were higher in females (2:1 and 5:3). The interparietal bone was single in two cases and was fragmented in the other case. The preinterparietal was single in 5 cases and fragmented in 3 cases. Conclusion: The South Indian population showed higher incidence of preinterparietal bones (10.3%) than interparietal bones (3.8%) and are more common in females. The study has provided additional information on the squamous part of occipital bone, the interparietal and preinterparietal bones, their incidence, sexual dimorphism and morphology. The knowledge of these variants is of importance to the neurosurgeons, radiologists and morphologists.

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EP - 141

JO - Journal of Morphological Sciences

JF - Journal of Morphological Sciences

SN - 0102-9010

IS - 3-4

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