Results 1 to 10 of about 1,152,344 (260)

Histological and anatomical structure of the nasal cavity of Bama minipigs. [PDF]

PLoS ONE, 2017
OBJECTIVE:The nasal mucosa is equipped with abundant lymphatic tissues, serving as the first line of defense against invasion by microorganisms. In this study, we characterized the features of the nasal mucosa of Bama minipigs (Sus scrofa domestica) via ...
Jingjing Yang, Lei Dai, Qinghua Yu, Qian Yang   +3 more
doaj   +2 more sources

Investigation on the nasal airflow characteristics of anterior nasal cavity stenosis

Brazilian Journal of Medical and Biological Research, 2016
We used a computational fluid dynamics (CFD) model to study the inspiratory airflow profiles of patients with anterior nasal cavity stenosis who underwent curative surgery, by comparing pre- and postoperative airflow characteristics. Twenty patients with
T. Wang, D. Chen, P.H. Wang, J. Chen, J. Deng   +4 more
doaj   +2 more sources

Nasal cavity perforation by implant fixtures: case series with emphasis on panoramic imaging of nasal cavity extending posteriorly [PDF]

Head & Face Medicine, 2023
The nasal cavity is an important landmark when considering implant insertion into the anterior region of the maxillary arch. The perforation of implants into the nasal cavity may cause complications, such as implant migration, inflammation, or changes in
Han-Gyeol Yeom, Kyung-Hoe Huh, Won-Jin Yi, Min-Suk Heo, Sam-Sun Lee, Soon-Chul Choi, Jo-Eun Kim   +6 more
doaj   +2 more sources

Influence of Latent Heat in the Nasal Cavity

Journal of Biomechanical Science and Engineering, 2013
Among the several functions of the nasal cavity, temperature and humidity adjustments are important for preserving the trachea and lungs. The functions of the nasal cavity have been clarified in experiments investigating the conditions in the nasal ...
Sho HANIDA, Futoshi MORI, Kiyoshi KUMAHATA, Masahiro WATANABE, Shigeru ISHIKAWA, Teruo MATSUZAWA   +5 more
doaj   +2 more sources

Clinical, anatomopathological and immunohistochemical findings of a transitional cell carcinoma from nasal cavity, frontal and ethmoidal sinus with meningoencephalic invasion in a dog [PDF]

Open Veterinary Journal, 2021
Background: Primary neoplasms of the nasal cavity and sinuses are uncommon in domestic animals, most of which are of epithelial origin, being adenocarcinoma the most common tumor diagnosed in this region.
Leonardo L. Gorza, Ayisa R. Oliveira, Maryleydy G. Porto, Vania C. Santos, Isabela Hardt, Luciana F.P. Maestri, Tayse D. Souza, Mayra C. Flecher   +7 more
doaj   +1 more source

Nasal airflow patterns in a patient with septal deviation and comparison with a healthy nasal cavity using computational fluid dynamics

Frontiers in Mechanical Engineering, 2022
Background and objective: Causes for nasal airway obstruction (NAO) are many but septum deviation is the most prevalent etiology. A deviated septum affects the airflow dynamics in the human nasal cavity, which in turn affects the physiological functions ...
John Valerian Corda, B. Satish Shenoy, Leslie Lewis, Prakashini K., S. M. Abdul Khader, Kamarul Arifin Ahmad, Mohammad Zuber   +6 more
doaj   +1 more source

N95 respirator mask breathing leads to excessive carbon dioxide inhalation and reduced heat transfer in a human nasal cavity

The Physics of Fluids, 2021
Face masks and respirators are used to filter inhaled air, which may contain airborne droplets and high particulate matter (PM) concentrations.
Hana Salati, Mehrdad Khamooshi, S. Vahaji, F. Christo, D. Fletcher, K. Inthavong   +5 more
semanticscholar   +1 more source

Three-Dimensional Structure Reconstruction System of Nasal Cavity Based on a Short-Source Acoustic Tube

Applied Sciences, 2023
The nasal cavity three-dimensional structure reconstruction is significant for the diagnosis and treatment of nasal and nasopharynx diseases. Currently, most systems for nasal cavity three-dimensional structure reconstruction are based on a long-source ...
Xiaoqin Lian, Guochun Ma, Chao Gao, Yuqiao Wang, Yelan Wu, Jin Li, Wenyang Guan, Yonggang Gong   +7 more
doaj   +1 more source

Nasality Changes With Age in Normal Korean-Speaking Adults [PDF]

Clinical and Experimental Otorhinolaryngology, 2019
Objectives This study was performed to investigate the effects of aging on nasality and the influence of age-related changes in nasal cavity volume and nasal patency on nasality. Methods A total of 180 healthy Korean-speaking adult volunteers, who had no
Jun Xu, Young-Ae Kang, Soo-Kyoung Park, Young Hoon Yoon, Shang Jie Bai, Yong De Jin, Yong Min Kim, Ki-Sang Rha   +7 more
doaj   +1 more source

Rapid Maxillary Expansion Has a Beneficial Effect on the Ventilation in Children With Nasal Septal Deviation: A Computational Fluid Dynamics Study

Frontiers in Pediatrics, 2022
Nasal septal deviation (NSD) is one of the most common nasal diseases. Different from common clinical examination methods, computational fluid dynamics (CFD) can provide visual flow information of the nasal cavity.
Shuai Chen, Jingying Wang, Xun Xi, Yi Zhao, Hong Liu, Dongxu Liu   +5 more
doaj   +1 more source