PMID: 9526136Apr 4, 1998Paper

Biomechanical significance of cross-sectional geometry of avian long bones

European Journal of Morphology
J Cubo, A Casinos

Abstract

Cortical area, maximum second moment of area and polar moment were calculated for the long bones of 39 species of birds. Regressions of all these parameters to body mass were established. At the same time, the orientations of the maximum second moment of area were statistically tested. The parameters calculated on humerus and ulna scaled according to the predictions derived from the geometric similarity hypothesis, while those calculated for the long bones of the leg showed higher exponents, very close to the predictions of the elastic similarity hypothesis. Confidence intervals calculated for radius parameters appeared to agree with both predictions. Only the for tarsometarsus was it impossible to establish a global orientation pattern for the maximum second moment of area. In the other cases, the orientation was: sagittal in the radius, posteromedial-anterolateral in the proximal long bones (humerus and femur) and posterolateral-anteromedial in the distal long bones (ulna and tibiotarsus). The implications of the present findings are discussed in terms of the possible correlations between the orientation patterns produced in the cross-sectional geometry of avian long bones and the load carried.

Citations

May 23, 2012·Journal of Anatomy·Michael DoubeSandra J Shefelbine
May 14, 2011·Journal of Morphology·Erin L R SimonsPatrick M O'Connor
Oct 1, 2019·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Adrià CasinosRafael Borroto-Páez
Dec 15, 2006·Nature·Alistair R EvansJukka Jernvall
Aug 12, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Michael B Bennett

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.