Origin and Etymology of fasciculus
New Latin, from Latin
First Known Use: 1713
Medical Definition of fasciculus
: a slender bundle of fibers:a: a bundle of skeletal muscle cells bound together by fasciae and forming one of the constituent elements of a muscleb: a bundle of nerve fibers that follow the same course but do not necessarily have like functional connections (as in some subdivisions of the funiculi of the spinal cord)—compare tract 2c: tract 2
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