ANATOMY

Detailed explanation-1: -Each bundle of muscle fiber is called a fasciculus and is surrounded by a layer of connective tissue called the perimysium . Within the fasciculus, each individual muscle cell, called a muscle fiber, is surrounded by connective tissue called the endomysium .

Detailed explanation-2: -Each muscle is made up of groups of muscle fibers called fascicles surrounded by a connective tissue layer called perimysium. Multiple units of individual muscle fibers within each fascicle are surrounded by endomysium, a connective tissue sheath.

Detailed explanation-3: -There are approximately 150 muscle fibres bundled together in a fascicle. However, this can vary based on the size and shape of the muscle. In the muscle as a whole, there can be between about 60 and 100 fascicles.

Detailed explanation-4: -perimysium is the sheath of connective tissue surrounding a bundle of muscle fibres.

Detailed explanation-5: -The number of fascicles in a muscle ranged from 61 to 101 fascicles per whole muscle. During dissection it was observed that the fascicles did not always run from distal to proximal tendon, that some fascicles were in series, and that they were not the same length as the whole muscle.