Results 31 to 40 of about 40,649 (262)

Tetrodotoxin and Its Analogues (TTXs) in the Food-Capture and Defense Organs of the Palaeonemertean Cephalothrix cf. simula

open access: yesToxins
Tetrodotoxin (TTX), an extremely potent low-molecular-weight neurotoxin, is widespread among marine animals including ribbon worms (Nemertea). Previously, studies on the highly toxic palaeonemertean Cephalothrix cf.
Grigorii V. Malykin   +2 more
doaj   +1 more source

A perspective from the Mesozoic: Evolutionary changes of the mammalian skull and their influence on feeding efficiency and high‐frequency hearing

open access: yesThe Anatomical Record, EarlyView.
Abstract The complex evolutionary history behind modern mammalian chewing performance and hearing function is a result of several changes in the entire skeletomuscular system of the skull and lower jaw. Lately, exciting multifunctional 3D analytical methods and kinematic simulations of feeding functions in both modern and fossil mammals and their ...
Julia A. Schultz
wiley   +1 more source

New record of chewing lice Piagetiella titan (Menoponidae: Mallophaga) Isolated from buccal cavity of White Pelican Pelecanus onocrotalus in Thi-Qar province-Southern Iraq

open access: yesمجلة علوم ذي قار, 2019
In the present study the oral cavity of white pelican Pelecanus oncrotalus (collected from Al-Sanaf marsh southern Thi-Qar province, Iraq) was examined in the Biology department / College of Education for Pure Science / Thi-Qar University. A total of 23
Zainab Abd-Ali Mohammad
doaj   +4 more sources

Diverticulum of the buccal mucosa: a rare case report and review of the literature

open access: yesBMC Oral Health, 2018
Background Cases of diverticula of the buccal mucosa are extremely rare. Literature searches of databases such as PubMed/MEDLINE for this condition have revealed only 10 case reports.
Akihiro Miyazaki   +9 more
doaj   +1 more source

Integrating mandibular evidence to assess morphological variation of the Australopithecus afarensis maxilla

open access: yesThe Anatomical Record, EarlyView.
Abstract Geometric morphometric analyses are used to explore variation of maxillary dental arcades of Australopithecus afarensis, expanding on the work of Hanegraef and Spoor, 2025 (Morphological variation of the Australopithecus afarensis maxilla.
Hester Hanegraef   +2 more
wiley   +1 more source

Diversity and Interactions of the Naso-Buccal Bacteriome in Individuals with Allergic Rhinitis, Asthma and Healthy Controls

open access: yesAllergies
Allergic rhinitis and asthma are significant public health concerns worldwide. While previous studies have explored how nasal and buccal bacteriotas influence these conditions, few have directly compared their bacteriomes within the same cohort.
Marcos Pérez-Losada
doaj   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

open access: yesThe Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman   +4 more
wiley   +1 more source

The buccal supernumerary cusp of maxillary first molar with c-shaped root canal: A case report [PDF]

open access: yesKouqiang yixue
Maxillary first molar teeth usually have 4 cusps, a few teeth have stuck cusps on the lingual side of the mesial tongue tip, while the presence of additional cusp on the buccal side of the mesial buccal tip is rarely reported, and it is even more rare ...
CHEN Jie, XING Yunbo, YE Mao
doaj   +1 more source

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

open access: yesThe Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis   +4 more
wiley   +1 more source

Fracture strength of teeth with access cavity preparation with operating microscope or on buccal surfaces

open access: yesBrazilian Dental Science, 2019
Objective: The present study assessed the fracture strength of teeth subjected to endodontic access cavity preparation on buccal surfaces, or with the aid of operating microscopy when compared to the conventional technique.
Yohanna Campos D’amico   +4 more
doaj   +1 more source

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