Results 111 to 120 of about 1,004,558 (395)

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Microsurgical procedure combined with thoracoscopic resection for thoracic spinal canal dumbbell-shaped tumors

Chinese Journal of Contemporary Neurology and Neurosurgery, 2013
Background Spinal canal dumbbell-shaped tumor growing to spinal canal and paravertebral, may compress the spinal cord and invade the spinal canal, intervertebral foramen and spinal structures, and cause clinical symptoms.
Bo DUAN, Jia-long GUO, Jun QIN, Liang CHEN, Hong-yang ZHAO   +4 more
doaj  

Sacrococcygeal teratoma with spinal canal invasion

Journal of Pediatric Surgery Case Reports, 2018
We report a case of a neonate with Altman typeⅠsacrococcygeal teratoma (SCT) with spinal canal involvement, in which ultrasonography was useful in the evaluation of the tumor progression into the spinal canal.
Shuichi Ishibashi, Yoshitsugu Tajima, Soichi Nakada, Yoko Ota, Jyunko Manako, Mako Ago, Naoaki Shibata, Takeshi Taketani, Koji Kumori   +8 more
doaj   +1 more source

Lesion-induced generation of interneuron cell types in specific dorsoventral domains in the spinal cord of adult zebrafish [PDF]

, 2012
In contrast to mammals, adult zebrafish regenerate neurons in the lesioned spinal cord. For example, motor neurons are generated from an olig2-expressing population of pMN-like ependymoradial glial cells in a ventrolateral position at the central canal ...
Bae, Barnabe-Heider, Batista, Batista, Becker, Becker, Berg, Bonner, Briscoe, Burrill, Cubitt, Davis, Dressler, Elliott, Ferretti, Fu, Fuccillo, Gabriel, Grandel, Hans, Jaszai, Jessell, Kimura, Kizil, Knopf, Kroehne, Kucenas, Kuscha, Lee, Lieberoth, Mansouri, McLean, Megason, Meletis, Muroyama, Nogradi, Pedersen, Reimer, Reimer, Rothenaigner, Schnapp, Shin, Sirbulescu, Tanabe, Thor, Vallstedt, Walther, Westerfield, Wilson, Wyart, Yamamoto   +50 more
core   +1 more source

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

The Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey, Eloy Gálvez‐López, Anthony Herrel, Laura B. Porro   +3 more
wiley   +1 more source

Tapering of the Cervical Spinal Canal in Patients with Chiari I Malformations

American Journal of Neuroradiology, 2012
BACKGROUND AND PURPOSE: Upper cervical spinal canal dimension may have a role in abnormal CSF dynamics in patients with Chiari I malformation. We attempted to measure spinal canal tapering from anteroposterior spinal canal dimensions in patients with ...
M. Hirano, V. Haughton, A. Munoz del Rio
semanticscholar   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Clinical evaluative value of cervical magnetic resonance T2 axial image in the severity of cervical canal stenosis

Zhongguo linchuang yanjiu
Objective To explore the clinical value of cervical magnetic resonance T2 axial image in evaluating thedegree of cervical canal stenosis，in order to guide precise clinical diagnosis and treatment.
FEI Changjun*，CHEN Bing，XIA Shiyong，ZHANG Xiaoyong，XIA Yiqiu，LI Hongxia
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Lumbar spinal canal osteosarcoma

Medicine, 2018
Abstract Rationale: Osteosarcoma is a rare neoplasm in the lumbar spine. Although osteosarcoma can arise in any portion of the skeleton, it very rarely arises in the spinal canal, which accounts for <0.1% of all cases of adult sarcomas. Here, we describe a case of osteosarcoma arising in the L4–5 spinal canal.
Chen, De-jian, Lai, Qi, Zhu, Jianghao, Wan, Zongmiao, Liu, Hucheng, Dai, Min, Guo, Runsheng, Zhang, Bin   +7 more
openaire   +2 more sources