A model for maxilloturbinate morphogenesis in seals
Jonathan E Kings, Lars P Folkow, Øyvind Hammer, Signe Kjelstrup, Matthew J Mason, Fengzhu Xiong, Eirik G Flekkøy, Lutz Brusch, Lutz Brusch, Lutz Brusch, Lutz Brusch
TL;DR
This paper presents a model explaining how complex nasal structures in seals develop, using simple rules and parameters.
Contribution
The study introduces a novel algorithmic model for maxilloturbinate morphogenesis in seals based on three key parameters.
Findings
The model successfully replicates the structural features of maxilloturbines in three seal species.
Quantitative comparisons with tomograms of seal skulls confirm the model's accuracy in structural development.
The model suggests that bone branches avoid each other through mechanosensing of fluid and air flow.
Abstract
The nasal cavities of mammals contain the maxilloturbinate bones, which are involved in reducing heat and water losses. The maxilloturbinates of Arctic seals develop into particularly elaborate labyrinthine patterns, which are well adapted to retain heat and moisture from exhaled gas. These structures develop prenatally and continue to grow postnatally. The developmental mechanism of labyrinthine patterning is unknown. Here we report a model of maxilloturbinate pattern formation in prenatal and juvenile seals based on a simple algorithmic description and three key parameters: target turbinate porosity, characteristic ossification time scale, and typical gestation time scale. Under a small set of geometrical and physical rules, our model reproduces key features of the patterns observed in the turbinate structure of three seal species. To validate our model, we measure complexity,…
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Taxonomy
TopicsMarine animal studies overview · Arctic and Antarctic ice dynamics · Physiological and biochemical adaptations