Results 21 to 30 of about 353,133 (388)

Retinal Capillary Plexus Pattern and Density from Fovea to Periphery Measured in Healthy Eyes with Swept-Source Optical Coherence Tomography Angiography

open access: yesScientific Reports, 2020
Optical coherence tomography angiography is evolving towards wider fields of view. As single widefield acquisitions have a lower resolution, preventing an accurate segmentation of vascular plexuses in the periphery, we examined the retinal ...
Carlo Lavia   +8 more
semanticscholar   +1 more source

The Brachial Plexus: Development and Assessment of a Computer Based Learning Tool [PDF]

open access: yes, 2001
The objective of the present study is to evaluate the use of multimedia technology to simplify study of the brachial plexus. A combination of newly-rendered illustrations, animations, explanatory text, and a set of printable sample questions were ...
Gould PhD, Douglas J.
core   +1 more source

Endothelium in the pharyngeal arches 3, 4 and 6 is derived from the second heart field. [PDF]

open access: yes, 2017
Oxygenated blood from the heart is directed into the systemic circulation through the aortic arch arteries (AAAs). The AAAs arise by remodeling of three symmetrical pairs of pharyngeal arch arteries (PAAs), which connect the heart with the paired dorsal ...
Astrof, Sophie   +5 more
core   +2 more sources

GABA-enhanced collective behavior in neuronal axons underlies persistent gamma-frequency oscillations [PDF]

open access: yes, 2003
Gamma (30–80 Hz) oscillations occur in mammalian electroencephalogram in a manner that indicates cognitive relevance. In vitro models of gamma oscillations demonstrate two forms of oscillation: one occurring transiently and driven by discrete afferent ...
A. Bibbig   +25 more
core   +2 more sources

Modeling co-operative volume signaling in a plexus of nitric oxide synthase-expressing neurons [PDF]

open access: yes, 2005
In vertebrate and invertebrate brains, nitric oxide (NO) synthase (NOS) is frequently expressed in extensive meshworks (plexuses) of exceedingly fine fibers.
Husbands, Philip   +4 more
core   +1 more source

Brachial plexus injury mimicking a spinal-cord injury. [PDF]

open access: yes, 2010
Objective High-energy impact to the head, neck, and shoulder can result in cervical spine as well as brachial plexus injuries. Because cervical spine injuries are more common, this tends to be the initial focus for management.
Aversano, Michael   +5 more
core   +1 more source

The homuncular jigsaw: investigations of phantom limb and body awareness following brachial plexus block or avulsion [PDF]

open access: yes, 2019
Many neuropsychological theories agree that the brain maintains a relatively persistent representation of one's own body, as indicated by vivid "phantom" experiences.
Giannini, Anna Maria   +3 more
core   +2 more sources

Development and training of a machine learning algorithm to identify patients at risk for recurrence following an arthroscopic Bankart repair (CLEARER): protocol for a retrospective, multicentre, cohort study

open access: yesBMJ Open, 2022
Introduction Shoulder instability is a common injury, with a reported incidence of 23.9 per 100 000 person-years. There is still an ongoing debate on the most effective treatment strategy.
  +32 more
doaj   +1 more source

Association of Choroid Plexus Enlargement With Cognitive, Inflammatory, and Structural Phenotypes Across the Psychosis Spectrum.

open access: yesAmerican Journal of Psychiatry, 2019
OBJECTIVE The choroid plexus is an important physiological barrier and produces CSF and neurotrophic, angiogenic, and inflammatory factors involved in brain development.
Paulo Lizano   +13 more
semanticscholar   +1 more source

The choroid plexus is an important circadian clock component

open access: yesNature Communications, 2018
Mammalian circadian clocks have a hierarchical organization, governed by the suprachiasmatic nucleus (SCN) in the hypothalamus. The brain itself contains multiple loci that maintain autonomous circadian rhythmicity, but the contribution of the non-SCN ...
J. Myung   +10 more
semanticscholar   +1 more source

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