MEDICAL PHYSIOLOGY

Detailed explanation-1: -The correct option is C fasciculus. 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: -A muscle fascicle is a bundle of skeletal muscle fibers surrounded by perimysium, a type of connective tissue.

Detailed explanation-4: -Beneath the fascia in skeletal muscle is another layer of connective tissue termed the epimysium which is closely associated with the fascia. It extends inwards and becomes the perimysium, then into the muscle separating muscle fibers into small bundles termed fascicles.

Detailed explanation-5: -Function. In the heart specialized cardiac muscle cells transmit electrical impulses from the atrioventricular node (AV node) to the Purkinje fibers – fascicles, also referred to as bundle branches.