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| Meruane,Manuel; Smok,Carolina; Rojas,Mariana. |
| The embryonic development of the facial area, neck, nasal, oral and pharyngeal cavities with glands, involves growth and fusion of multi-dimensional processes. There is involvement of elements from the embryo-derived local 3 layers cells further neural crest derived cells from the neighbors rhombomeres. The neural crest cells are involved in the formation of local skeleton, among other structures. The study of evolution from jawless vertebrates shows us how Hox genes are expressed in different species, and how this determines the formation of different structures. The following review contemplate some morphological, molecular and evolutionary basis of facial and neck development, with emphasis on mammals with an epilogue concerning to the face and neck... |
| Tipo: Journal article |
Palavras-chave: Face; Neck; Pharyngeal arches; Neural crest cells; Malformations. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000400020 |
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| Natchev, N.; Tzankov, N.; Vergilov, V.; Kummer, S.; Handschuh, S.. |
| The snake-eyed skink Ablepharus kitaibelii is one of the smallest European lizards, but despite its minute size it is able to feed on comparatively large prey. Here we investigate the diet of A. kitaibelii and the mechanisms that allow the skink to overpower relatively large and even noxious prey. High-speed cinematography showed that A. kitaibelii uses a series of shaking and battering movements to immobilise and kill prey prior to swallowing. During this process, the skinks rises up on the hind limbs and then whacks the prey sidewise on the substrate by twisting the trunk, neck and head laterally. Our analysis showed that the shaking kinematics is very uniform among the investigated specimens. The morphological investigation of the cranio-cervical system... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Evolution; Feeding; Neck; Odontoid; Parallel; Skink; ΜCT; 42.82. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/515947 |
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