Results 31 to 40 of about 262,298 (362)

Pediatric Airway Pathology

open access: yesFrontiers in Pediatrics, 2020
Congenital or acquired disorders of the pediatric airway can affect the upper, lower, or entire airway. There are fundamental differences between the anatomy and physiology of the neonate, pediatric, and adult airways. Infants are not merely small adults
Shyan Vijayasekaran, Shyan Vijayasekaran
doaj   +1 more source

Tissue-specific expression of high-voltage-activated dihydropyridine-sensitive L-type calcium channels [PDF]

open access: yes, 1991
The cloning of the cDNA for the α1 subunit of L-type calcium channels revealed that at least two genes (CaCh1 and CaCh2) exist which give rise to several splice variants.
Caffrey J. M.   +26 more
core   +2 more sources

Surgical anatomy of the trachea.

open access: yesAnnals of Cardiothoracic Surgery, 2018
Anatomy as the foundation of surgery is a concept no better exemplified than by the history of tracheal surgery. Incremental advancements in our understanding of the trachea's position, structure, blood supply and adjacent organs each allowed for ...
P. W. Furlow, D. Mathisen
semanticscholar   +1 more source

Discovery of a lipid synthesising organ in the auditory system of an insect [PDF]

open access: yes, 2012
Weta possess typical Ensifera ears. Each ear comprises three functional parts: two equally sized tympanal membranes, an underlying system of modified tracheal chambers, and the auditory sensory organ, the crista acustica.
Corfield, Jeremy   +5 more
core   +6 more sources

Synchronized mesenchymal cell polarization and differentiation shape the formation of the murine trachea and esophagus

open access: yesNature Communications, 2018
Tube morphogenesis is essential for internal-organ development, yet the mechanisms regulating tube shape remain unknown. Here, we show that different mechanisms regulate the length and diameter of the murine trachea.
Keishi Kishimoto   +7 more
semanticscholar   +1 more source

Effects of varying inhalation duration and respiratory rate on human airway flow [PDF]

open access: yesarXiv, 2021
Studies of flow through the human airway have shown that inhalation time (IT) and secondary flow structures can play important roles in particle deposition. However, the effects of varying IT in conjunction with respiratory rate (RR) on airway flow remain unknown.
arxiv  

Anatomical bases of sex- and size-related acoustic variation in herring gull alarm calls [PDF]

open access: yes, 2014
The hypothesis that anatomical or physiological factors can constrain the production of vocalizations is supported by an increasing number of examples from a range of taxa, where acoustic variation is related to sex, body-size or condition. In this study,
Appleby   +43 more
core   +1 more source

Tissue-engineered trachea from a 3D-printed scaffold enhances whole-segment tracheal repair

open access: yesScientific Reports, 2017
Long segmental repair of trachea stenosis is an intractable condition in the clinic. The reconstruction of an artificial substitute by tissue engineering is a promising approach to solve this unmet clinical need.
Manchen Gao   +13 more
semanticscholar   +1 more source

Comparative study of the reliability of ultrasound to confirm the position of endotracheal tube with cuff inflated with saline versus air

open access: yesJournal of Ultrasonography, 2021
Aim: To compare the reliability of transtracheal ultrasound to confirm the endotracheal tube position with saline versus air inflated cuff. Methods: This was a prospective randomized cadaveric study.
Santinelli Sarah   +3 more
doaj   +1 more source

Numerical modeling of photon migration in human neck based on the radiative transport equation [PDF]

open access: yesJournal of Applied Nonlinear Dynamics, 5 (2016) 117-125, 2016
Biomedical optical imaging has a possibility of a comprehensive diagnosis of thyroid cancer in conjunction with ultrasound imaging. For improvement of the optical imaging, this study develops a higher order scheme for solving the time-dependent radiative transport equation (RTE) by use of the finite-difference and discrete-ordinate methods.
arxiv   +1 more source

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