ANATOMY

Detailed explanation-1: -A single bundle of muscle fibres is known as fasciculus (plural: fasciculi) 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 bundle of muscle fiber is called a fasciculus and is surrounded by a layer of connective tissue called the perimysium.

Detailed explanation-3: -Each fascicle (or fasciculus) is a bundle of muscle fibers, also called myocytes, bound together via the endomysium tissue that provides pathways for the passage of blood vessels and nerves.

Detailed explanation-4: -A skeletal muscle fascicle consists of 20 to 60 fibers surrounded by a connective tissue sheath. A single muscle fiber is innervated by only one motor unit, but there may be two to three motor units within a fascicle.

Detailed explanation-5: -Arrangement of Fascicles Skeletal muscles are grouped into fascicles, which are bunches of muscle fibers surrounded by a perimysium. It extends inwards and becomes the perimysium, then into the muscle separating muscle fibers into small bundles termed fascicles.