Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method

SUMMARY: The study aimed at estimating the values of basic metric traits of emu cervical vertebrae. The study was conducted on the vertebrae of 6 male and 10 female emus being fourteen years old. Osteometric measurements were performed with electronic callipers, while the hydrostatic method was used...

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Autores principales:	Baranowski,Piotr, Krajewski,Sawomir, Nowacki,Jerzy, Nowak,Piotr
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2018
Materias:	Cervical spine Cervical vertebrae Hydrostatic method Ratiatae Palaeognathae Emu
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000200608
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spelling	oai:scielo:S0717-950220180002006082019-09-16Morphometry of the Cervical Spine of Emu Using the Hydrostatic MethodBaranowski,PiotrKrajewski,SawomirNowacki,JerzyNowak,Piotr Cervical spine Cervical vertebrae Hydrostatic method Ratiatae Palaeognathae Emu SUMMARY: The study aimed at estimating the values of basic metric traits of emu cervical vertebrae. The study was conducted on the vertebrae of 6 male and 10 female emus being fourteen years old. Osteometric measurements were performed with electronic callipers, while the hydrostatic method was used to assess the density and volume of each vertebra. The sex of birds was considered a source of variation. The cervical spine had 17 vertebrae. Dimorphism was found in basic metric traits between analogous emu vertebrae of both sexes. The female vertebrae were characterised by significantly (P≤0.05 and P≤0.01) greater length, breadth and height than the male ones. No dimorphic differences were found in the volume of bone mass for vertebrae 1 to 8, whereas female vertebrae 9 to 17 had greater (P≤0.05) volume compared to the male ones. Correlation coefficients for body weight, vertebra volume and spinal canal capacity were weak. The sum of the length of vertebral bodies determining the length of neck showed significantly (P≤0.01) longer necks in female emus. No narrowing and extensions of the vertebral canal for the spinal cord running in it was found throughout the whole cervical spine.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.36 n.2 20182018-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000200608en10.4067/S0717-95022018000200608
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cervical spine Cervical vertebrae Hydrostatic method Ratiatae Palaeognathae Emu
spellingShingle	Cervical spine Cervical vertebrae Hydrostatic method Ratiatae Palaeognathae Emu Baranowski,Piotr Krajewski,Sawomir Nowacki,Jerzy Nowak,Piotr Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method
description	SUMMARY: The study aimed at estimating the values of basic metric traits of emu cervical vertebrae. The study was conducted on the vertebrae of 6 male and 10 female emus being fourteen years old. Osteometric measurements were performed with electronic callipers, while the hydrostatic method was used to assess the density and volume of each vertebra. The sex of birds was considered a source of variation. The cervical spine had 17 vertebrae. Dimorphism was found in basic metric traits between analogous emu vertebrae of both sexes. The female vertebrae were characterised by significantly (P≤0.05 and P≤0.01) greater length, breadth and height than the male ones. No dimorphic differences were found in the volume of bone mass for vertebrae 1 to 8, whereas female vertebrae 9 to 17 had greater (P≤0.05) volume compared to the male ones. Correlation coefficients for body weight, vertebra volume and spinal canal capacity were weak. The sum of the length of vertebral bodies determining the length of neck showed significantly (P≤0.01) longer necks in female emus. No narrowing and extensions of the vertebral canal for the spinal cord running in it was found throughout the whole cervical spine.
author	Baranowski,Piotr Krajewski,Sawomir Nowacki,Jerzy Nowak,Piotr
author_facet	Baranowski,Piotr Krajewski,Sawomir Nowacki,Jerzy Nowak,Piotr
author_sort	Baranowski,Piotr
title	Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method
title_short	Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method
title_full	Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method
title_fullStr	Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method
title_full_unstemmed	Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method
title_sort	morphometry of the cervical spine of emu using the hydrostatic method
publisher	Sociedad Chilena de Anatomía
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000200608
work_keys_str_mv	AT baranowskipiotr morphometryofthecervicalspineofemuusingthehydrostaticmethod AT krajewskisawomir morphometryofthecervicalspineofemuusingthehydrostaticmethod AT nowackijerzy morphometryofthecervicalspineofemuusingthehydrostaticmethod AT nowakpiotr morphometryofthecervicalspineofemuusingthehydrostaticmethod
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Morphometry of the Cervical Spine of Emu Using the Hydrostatic Method

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