fibril /fi·bril/ (fi´bril) a minute fiber or filament.fibril´larfib´rillary
fibril
fibril [fi´bril]
collagen fibrils delicate fibrils of collagen in connective tissue, composed of molecules of tropocollagen aggregated in linear array. 
)
Type I collagen fibril (A); it is composed of unit fibrils, here shown negatively stained (B). The unit fibrils themselves comprise tropocollagen molecules in regular staggered arrays (C, D).
dentinal fibrils component fibrils of the dentinal matrix.
muscle fibril myofibril.
fi·bril (f  br l, f brl) or fi·bril·la (f-brl)n. A minute fiber. |
fibril
[fī′bril]
Etymology: L, fibrilla, small fiber
a small filamentous fiber that often is a component of a cell, as in a mitotic spindle or a myofibril. fibrillary, adj.
fibril [fi´bril]
a minute fiber or filament. adj., adj fi´brillar, fi´brillary.
collagen f's delicate fibrils of collagen in connective tissue, composed of molecules of tropocollagen in linear array. In Type I collagen, the most common type, the tropocollagen molecules are associated in periodic, staggered arrays that give the appearance of cross-banding, forming unit fibrils; these unit fibrils are aggregated in bundles to form larger fibrils, with longitudinal striations, which may themselves be aggregated into fibers.
muscle fibril myofibril.
fibril
a minute fiber or filament.
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