A small fiber; the branch of a fiber; a very slender thread; a fibrilla.
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Fibrils (from the Latin fibra ) are structural biological materials found in nearly all living organisms. Not to be confused with fibers or filaments, fibrils tend to have diameters ranging from 10-100 nanometers (whereas fibers are micro to milli-scale structures and filaments have diameters approximately 10-50 nanometers in size). Fibrils are not usually found alone but rather are parts of greater hierarchical structures commonly found in biological systems. Due to the prevalence of fibrils in biological systems, their study is of great importance in the fields of microbiology, biomechanics, and materials science.
Fibrillogenesis is the development of fine fibrils normally present in collagen fibers of connective tissue. It is derived from the Greek fibrillo (meaning fibrils, or pertaining to fibrils) and genesis (to create, the process by which something is created).
Boletus fibrillosus is a basidiomycete fungus of the genus Boletus found in western North America. The fruiting bodies are found in mixed coastal forests in the fall. The cap is up to 17 cm wide, buff to brown to dark brown in color, and has a wrinkled to finely fibrous texture. The tubes are yellow, while the flesh is white to buff and does not stain when cut. The stem is yellow at the top, brown otherwise, and has a reticulate texture. The holotype was collected in Mendocino County, California.
Atrial Fibrillation Association
The AF Association (AF–A) is an international charity that provides information and support for patients suspected of having, or diagnosed with atrial fibrillation (AF); the most common heart rhythm disorder. The AF Association also works to campaign for greater awareness of AF amongst the general public and increase education for healthcare professionals and service providers involved in the management of AF.
Dr. Gibril Ibrahim Mohammed is the leader of the Justice and Equality Movement (JEM). He was chosen to replace his brother, Khalil, on 26 January 2012, after Khalil's death in a SAF airstrike in Northern Kordofan in December 2011.
Fibrillithecis sprucei is a species of lichen in the family Thelotremataceae. It was described as new to science in 2011. Found in Brazil, the specific epithet sprucei honors botanist Richard Spruce.
Gymnopilus fibrillosipes is a species of mushroom in the Cortinariaceae family.
Ablation of atrial fibrillation
Catheter ablation is a procedure used to remove or terminate a faulty electrical pathway from sections of the hearts of those who are prone to developing cardiac arrhythmias such as atrial fibrillation, atrial flutter, supraventricular tachycardias (SVT) and Wolff-Parkinson-White syndrome (WPW syndrome). If not controlled, such arrhythmias increase the risk of ventricular fibrillation and sudden cardiac arrest. The ablation procedure can be classified by energy source: radiofrequency ablation and cryoablation.