Results 61 to 70 of about 8,050 (212)

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

open access: yesThe Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund   +4 more
wiley   +1 more source

Manobrar a vertigem posicional paroxística benigna do canal semicircular posterior

open access: yes, 2014
Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2014Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo, which is described, essentially, as an illusory sense of motion.
Neto, Catarina Daniela Teles de Bárbara Moreira
core   +2 more sources

A Questionnaire-Derived Prediction Nomogram for Affected Semicircular Canal and Laterality of Benign Paroxysmal Positional Vertigo

open access: yesDiagnostics
Objective: To investigate whether a detailed historical questionnaire can predict the affected semicircular canal and lateralization in patients with benign paroxysmal positional vertigo (BPPV).
Linlin Wang   +7 more
doaj   +1 more source

The petrotympanic canal (Huguier canal): Evolutionary, anatomical, and medical perspectives

open access: yesThe Anatomical Record, EarlyView.
Abstract The petrotympanic canal, traditionally referred to as Civinini's or Huguier's canal, represents an anatomical passage connecting the middle ear and temporomandibular joint (TMJ). Despite its early description, its structural complexity and functional significance have often been underestimated. In this study, we combined historical, anatomical,
Andrea Papini   +8 more
wiley   +1 more source

Influence of Sex and Age on Posterior Semicircular Canal Thickness

open access: yesAudiology and Neurotology, 2017
<b><i>Objective:</i></b> The aim of this study is to determine whether sex and age influence posterior semicircular canal (PSC) thickness. <b><i>Methods:</i></b> This observational study was conducted in 3 tertiary hospitals.
Jaime Whyte   +7 more
openaire   +4 more sources

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

open access: yesThe Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox   +8 more
wiley   +1 more source

Guide the diagnosis and treatment of benign paroxysmal positional vertigo from the perspective of vestibular pathophysiology

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2019
This paper aims to explain the clinical features of benign paroxysmal positional vertigo (BPPV), the most common peripheral vertigo disease, from the view of vestibular pathophysiology.
Jian-hua ZHUANG
doaj  

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti   +4 more
wiley   +1 more source

Definition of planes and semicircular canal position measurements.

open access: yes, 2015
T2 3D MRI showing sagittal, parasagittal, and frontal planes. Distances of the semicircular canal are defined as: “lateral distance right” (LDR) for the right lateral canal, “lateral distance left” (LDL) for the left lateral canal, “posterior distance ...
Julien Lacoudre (771841)   +7 more
core   +1 more source

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