fasciklene

Fasciklene is a term used in biology and anatomy to describe a bundle or a sheath of muscle fibers or nerve fibers. This term refers to the connective tissue that encloses these structures. In muscles, fascicles are groups of muscle cells that are surrounded by a layer of connective tissue called the perimysium. The arrangement of these fascicles within a muscle is crucial for its function and determines the type of movement the muscle can produce. For example, muscles with fascicles arranged in a parallel fashion are typically capable of producing rapid contractions, while those with pennate arrangements, where fascicles are angled, can generate more force.

In the nervous system, fascicles also represent bundles of nerve fibers, or axons, wrapped in connective tissue called the endoneurium and perineurium. These bundles are the basic structural units of peripheral nerves. The organization of fascicles within a nerve allows for the transmission of specific sensory or motor signals to and from the central nervous system. Damage to these fascicles can result in a loss of nerve function, affecting sensation or movement. The term fasciklene therefore highlights the organized, bundled nature of these fundamental biological components.