Search results for "Incus"
showing 6 items of 6 documents
Disconnecting bones within the jaw-otic network modules underlies mammalian middle ear evolution
2019
The origin of the mammalian middle ear ossicles from the craniomandibular articulation of their synapsid ancestors is a key event in the evolution of vertebrates. The richness of the fossil record and the multitude of developmental studies have provided a stepwise reconstruction of this evolutionary innovation, highlighting the homology between the quadrate, articular, pre-articular and angular bones of early synapsids with the incus, malleus, gonial and ectotympanic bones of derived mammals, respectively. There are several aspects involved in this functional exaptation: (i) an increase of the masticatory musculature; (ii) the separation of the quadrate bone from the cranium; and (iii) the …
Raphidascaris (Raphidascaris) macrouri n. sp. (Nematoda: Anisakidae) from two deep-sea macrourid fishes in the Western Mediterranean: Morphological a…
2015
Abstract A new nematode species, Raphidascaris ( Raphidascaris ) macrouri n. sp. (Anisakidae), is described from male and female specimens found in the intestine, and occasionally in stomach and pyloric caeca, of two deep-water macrourid fishes (Gadiformes) off Barcelona, Mediterranean Sea: Nezumia aequalis (Gunther) (type-host) and Trachyrincus scabrus (Rafinesque). Based on light and scanning electron microscopy examination, the new species shows similar morphological features as the other four valid species of the subgenus Raphidascaris Railliet & Henry, 1915, but it differs from Raphidascaris ( Raphidascaris ) acus (Bloch, 1779), Raphidascaris (Raphidascaris ) lutjani Olsen, 1952 and Ra…
Annual variation of parasite communities of deep-sea macrourid fishes from the western Mediterranean Sea and their relationship with fish diet and hi…
2015
16 pages, 8 figures, 8 tables
Emporion arcaica: génesis de un tipo de reverso
2014
Ce travail traite des revers incus présents sur les émissions archaïques d’Emporion. Après une période utilisant plusieurs types de revers, l’atelier créa à la fin de sa phase A archaïque (vers 500 av. J.-C.) un très caractéristique revers-type : une croix perlée à l’intérieur d’un carré creux à quatre languettes. This paper deals with the archaic incuse reverses on coins minted by Emporion. After a period using several reverse types, at the end of the archaic phase A (ca. 500 BC) the mint created the most characteristic incuse square: a dotted cross inside an incuse square with four square knobs.
I resti scheletrici della grotta di S. Teodoro presso il Museo Gemmellaro di Palermo: il nuovo restauro conservativo di ST2
2013
The work describes the restoration of the cranium ST2 of the Epipalaeolithic site of S. Teodoro, Sicily. This restoration has been conducted in accordance to modern criteria of conservation limiting the integrative and reconstructive interpretation to the minimum. After the restauration ST2 has been morphologically described and measured. The fortuitous recovery of a left incus bone allowed its morphological and metrical description.
Necrosis of the long process of the incus following stapes surgery: new anatomical observations.
2009
Objectives/Hypothesis: The most frequent complication (generally recognized during revision procedures) following seemingly successful stapedotomies and stapedectomies is necrosis of the long process of the incus. This is currently ascribed to a malcrimped stapes prosthesis or to a compromised blood supply of the incus. The two-point fixation can cause a mucosal injury with a resulting toxic reaction, and also osteoclastic activity. An important aspect in the engineering of ideal stapes prostheses is that they should be fixed circularly to the long process of the incus with appropriate strength. The objective of this study was to compare current knowledge relating to the blood supply of the…