Science topic
Cervical Vertebrae - Science topic
Explore the latest questions and answers in Cervical Vertebrae, and find Cervical Vertebrae experts.
Questions related to Cervical Vertebrae
CERVICAL VERTEBRAE OF HUMAN BEING FROM C1-C7.
Cervical vertebrae c1-c7
In literature, Anterior longitudinal ligament (ALL), Posterior longitudinal ligament (ALL), Supraspinous Ligament (SSL), Interspinous Ligament (ISL), Intertransverse Ligament (ITL), Facet Capsular Ligament (FCL), Ligamentum flavum (LFL) ligaments are modeled with the whole lumbar vertebrae. However, I couldn't reach the exact numbers of them in the model, repectively. Do you have any information about this? Could you give me a suggestion to solve this problem?
I seek information of air proportion with respect to total vertebral volume in sauropod vertebrae. To be more precise, the measurement I am after is air proportion with respect to total bone volume i.e. how much of the bone is replaced by pneumatic cavities.
The reason I want such data is to compare them with the results I have obtained based on a new method my co-author and I have developed. The method calculates an estimation of the expression of pneumaticity in vertebrae and we intend to submit this work for publication.
Information can be from published material, appendices/SI that have been lost from the web or from people who would be willing to share their personal unpublished data of scanned sauropod vertebrae. I have been searching the web for a long time but maybe I may have missed some useful sources.
So far, I have retrieved information from Wedel, 2005, Schwarz & Fritsch, 2006, and Zurriaguz & Cerda, 2017. I have not been able to find anything else; for example, the Appendix of Schwarz, Frey and Meyer (2007) does not exist in the archives of Acta Palaeontologica Polonica. In addition, there is not any such information from digital repositories like DigiMorph or MorphoSpace. Have I missed something there? What other sources of information would you suggest?
Measurements can be from any method e.g. CT scanning (X-ray, etc.), ASP (Wedel, 2005) or any other method or technique.
My deepest gratitude to anyone who can help in this project and many thanks for your time and aid, in advance.
All the best,
Naomi
Hi everyone!
I am working nowadays with bird cervical vertebrae and I haven trying to find this reference for a while, but it has been imposible to me to do it.
As it is an old research is quite elusive to find it on the internet, but maybe you have access to it.
BOAS, J. E. V. 1929. Biologisch-anatomische Studien über den Hals der Vögel. Det Kongelige Danske Videnskabernes Selskabs Skrifter, Naturvidenskabelig og Mathematisk Afdeling 9, 101–222
Any help would be appreciated
Thank you very much
Manuel Pérez
I have found mixed messages in published articles around the likelihood that a primary (non-metastatic) vertebral tumor (i.e. extradural tumor) is benign.
"Metastatic tumors are most common (97%) tumors of the spine." Ciftdemir et al (2016) W J Orthopedics 7:109-116
"Primary extradural tumors of the spine are rare and constitute approximately 4% of all spine tumors." Lam et al (2014) SNI 5:S373-S375
"Benign tumors such as meningiomas and neurofibromas account for 55 to 65 percent of all primary spinal tumors... Metastatic spinal tumors are the most common type of malignant lesions of the spine, accounting for an estimated 70 percent of all spinal tumors." AANS (http://www.aans.org/Patient%20Information/Conditions%20and%20Treatments/Spinal%20Tumors.aspx)
What is the truth? Do metastatic spinal tumors make up 70% or 97% of spinal tumors? What is the likelihood that a primary vertebral (extradural) tumor is benign? 20% or as little as 01.2%? This difference is far from trivial.
Isolated fossil recovered on the surface of an outcrop of the Wealden facies from Spain. Maybe a neural arch of a cervical vertebra (of an undetermined archosaur), or a skull fragment??.. Other ideas? Thanks in advance!



