Results 31 to 40 of about 108,514 (272)

Physical and geometric constraints explain the labyrinth-like shape of the nasal cavity [PDF]

open access: yes, 2017
The nasal cavity is a vital component of the respiratory system that heats and humidifies inhaled air in all vertebrates. Despite this common function, the shapes of nasal cavities vary widely across animals. To understand this variability, we here connect nasal geometry to its function by theoretically studying the airflow and the associated scalar ...
arxiv   +1 more source

Influence of Latent Heat in the Nasal Cavity

open access: yesJournal 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   +5 more
doaj   +1 more source

The effect of decongestion on nasal airway patency and airflow

open access: yesScientific Reports, 2021
Nasal decongestant reduces blood flow to the nasal turbinates, reducing tissue volume and increasing nasal airway patency. This study maps the changes in nasal anatomy and measures how these changes affect nasal resistance, flow partitioning between ...
Qiwei Xiao   +3 more
doaj   +1 more source

Neuroanatomical study of the podocnemidid turtle Neochelys arenarum (Pleurodira), from the early Eocene of France

open access: yesThe Anatomical Record, EarlyView., 2023
Abstract Neochelys is an exclusively European Eocene podocnemidid genus belonging to a linage that reached this continent at the early Eocene. The so far available anatomical information about it is relatively abundant, especially considering that of its shell, at least partially preserved for the eight valid species currently considered.
Marcos Martín‐Jiménez   +1 more
wiley   +1 more source

Lizards and amphisbaenians (Reptilia, Squamata) from the middle Eocene of Mazaterón (Soria, Spain)

open access: yesThe Anatomical Record, EarlyView., 2023
Abstract The assemblage of lizards and amphisbaenians (Reptilia, Squamata) from the middle Eocene locality of Mazaterón (Spain) is described. Considering the rather limited material available for the study, the assemblage shows a moderate diversity with eight taxa corresponding to five different families.
Arnau Bolet
wiley   +1 more source

Evaluation of the glottic surface dose in three‐dimensional conformal radiotherapy for early‐stage glottic cancer using a treatment planning system

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
ABSTRACT Background In radiotherapy for early‐stage glottic cancer, evaluating the target surface dose at the glottic air–tissue boundary is crucial, as buildup effect can cause underdosing. The accuracy of dose evaluation in the surrounding tissues is affected by both the dose calculation algorithms and the accuracy of the Hounsfield unit values in ...
Yuki Saito   +3 more
wiley   +1 more source

Craniogenetic studies in Sus scrofa: With emphasis on the ‘orbitosphenoid’ problem

open access: yesThe Anatomical Record, EarlyView., 2023
Abstract The orbitosphenoid is a skeletal element of the endocranium of extant mammals. However, it has also been described in many of their fossil ancestors. Craniogenetic studies show that it is composed of two types of bone: first, the cartilaginous ala orbitalis and parts of the trabecular plate are transformed by endochondral ossification; second,
Wolfgang Maier, Ulla Lächele, Irina Ruf
wiley   +1 more source

Basaloid Squamous Cell Carcinoma in Nasal Cavity [PDF]

open access: yesClinical and Experimental Otorhinolaryngology, 2009
Basaloid squamous cell carcinoma (BSCC) is often founded in the head and neck region. However, BSCC in the sinonasal tract is rare. We report here on the case of a 58-yr-old woman who presented with nasal obstruction and epistaxis.
Joong Seob Lee   +3 more
doaj   +1 more source

DICOM attribute manipulation tool: Easily change frame of reference, series instance, and SOP instance UID

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose In radiation oncology, the integration and registration of multiple imaging modalities is a crucial aspect of the diagnosis and treatment planning process. These images are often inherently registered, a useful feature in most cases, but possibly a hindrance when registration modifications are required.
Brian M. Anderson, Casey Bojechko
wiley   +1 more source

Comparative morphogenesis of nasal region in human and some mammals.

open access: yesМорфологія, 2016
Background. Comparative anatomical and embryological research has not lost its relevance in the wide field of human body structures and systems studying.
N. B. Kuzniak   +3 more
doaj   +1 more source

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