MEDICAL PHYSIOLOGY

Detailed explanation-1: -Each muscle is composed of bundles (fascicles) of myofibers surrounded by a fibrous connective tissue sheath known as the epimysium or deep fascia. Muscles are joined to tendons at myotendinous junctions. Tendons anchor each muscle to bone and are continuous with the epimysium.

Detailed explanation-2: -Fascicles can be parallel, circular, convergent, pennate, fusiform, or triangular. Each arrangement has its own range of motion and ability to do work.

Detailed explanation-3: -The correct answer is d. Of all the answers, the largest structure is the fascicle. Fascicles are made up of muscle fibers and muscle fibers are made up of myofibrils. Myofibrils are made up of myofilaments which would make them the smallest structure in the list.

Detailed explanation-4: -Also known as the epimysium, this is the connective tissue sheath surrounding skeletal muscle and can, in some cases, connect directly to the periosteum of bones.