ArticleJournal of anatomy2016
Structure and function of the septum nasi and the underlying tension chord in crocodylians.
Article in Journal of anatomy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 14 citations in OpenAlex.
- Structure and evolution of the embryonic cartilaginous skull of crocodilians.Royal Society open science · 2025Article
- Trifold origin of the reptilian ear ossicle and its relation to the evolutionary modification of the temporal skull region.Journal of anatomy · 2025Article
- Septal deviation in the nose of the longest faced crocodylian: A description of nasal anatomy and airflow in the Indian gharial (Gavialis gangeticus) with comments on acoustics.Anatomical record (Hoboken, N.J. : 2007) · 2022Article
- Determination of muscle strength and function in plesiosaur limbs: finite element structural analyses ofPeerJ · 2022Article
- Synchrotron "virtual archaeozoology" reveals how Ancient Egyptians prepared a decaying crocodile cadaver for mummification.PloS one · 2020Article
- The biomechanical role of the chondrocranium and sutures in a lizard cranium.Journal of the Royal Society, Interface · 2017Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A long rostrum has distinct advantages for prey capture in an aquatic or semi-aquatic environment but at the same time poses severe problems concerning stability during biting. We here investigate the role of the septum nasi of brevirostrine crocodilians for load-absorption during mastication. Histologically, both the septum nasi and the septum interorbitale consist of hyaline cartilage and therefore mainly resist compression. However, we identified a strand of tissue extending longitudinally below the septum nasi that is characterized by a high content of collagenous and elastic fibers and could therefore resist tensile stresses. This strand of tissue is connected with the m. pterygoideus anterior. Two-dimensional finite element modeling shows that minimization of bending in the crocodilian skull can only be achieved if tensile stresses are counteracted by a strand of tissue. We propose that the newly identified strand of tissue acts as an active tension chord necessary for stabilizing the long rostrum of crocodilians during biting by transforming the high bending stress of the rostrum into moderate compressive stress.
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