Fascicle or fasciculus may refer to:
Anatomy and histology
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Muscle fascicle, a bundle of skeletal muscle fibers
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Nerve fascicle, a bundle of axons (nerve fibers)
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Superior longitudinal fasciculus
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Gracile fasciculus
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Cuneate fasciculus
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Dorsal longitudinal fasciculus
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Medial longitudinal fasciculus
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Flechsig's fasciculus
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Fascicular pattern of histopathologic architecture
Botany
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Fascicle (botany), a cluster of flowers or leaves, such as the bundles of the thin leaves (or needles) of pines
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A discrete bundle of vascular tissue
Other uses
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Fasciculus, a fossil comb jelly
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Fasciculus Chemicus, a 17th-century anthology of alchemical writings
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Fascicle (book), a discrete section of a larger book or other published work issued in serial form
