Fascicle
Fascicle
Fascicle (/ˈfæsɪkəl/), derived from the Latin word fasciculus, meaning "small bundle", is a term used in various fields of medicine and biology. It refers to a bundle of structures, such as nerve or muscle fibers, that are bound together by connective tissue.
Etymology
The term fascicle originates from the Latin fasciculus, a diminutive of fascis, which means "bundle". It was first used in the English language in the mid-17th century.
In Anatomy
In anatomy, a fascicle refers to a bundle of skeletal muscle fibers surrounded by perimysium, a type of connective tissue. These bundles are grouped together to form a muscle. The organization of muscle fibers into fascicles can affect the force, velocity, and range of motion of a muscle.
In Neurology
In neurology, a fascicle is a bundle of axons, the long threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells. These bundles are grouped together to form nerves.
In Botany
In botany, a fascicle is a bundle of leaves or flowers growing crowded together; alternatively the term might refer to the vascular tissues within a leaf.
Related Terms
- Perimysium: A sheath of connective tissue that groups muscle fibers into bundles (anywhere between 10 to 100 or more) or fascicles.
- Axon: A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.
- Neuron: The basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells.
- Vascular tissue: A complex conducting tissue, formed of more than one cell type, found in vascular plants.
External links
- Medical encyclopedia article on Fascicle
- Wikipedia's article - Fascicle
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