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: -The correct option is D perimysium. A muscle fibre is a cylindrical shaped cell lined by the sarcolemma (plasma membrane). The epimysium is another covering, made of areolar connective tissue, outside the sarcolemma.

Detailed explanation-3: -The muscle cell membrane is called the sarcolemma and the cytoplasm, the sarcoplasm. The sarcolemma has the property of excitability and can conduct the electrical impulses that occur during depolarization.

Detailed explanation-4: -Perimysium is the connective tissue surrounding muscle bundles, and endomysium is the connective tissue surrounding muscle fibres. Both types of connective tissue provide structural support to muscles.

Detailed explanation-5: -The perimysium surrounds groups of fibers called fasciculi, and epimysium wraps the entire muscle in a sheath of connective tissue. The sarcolemma, a thin, elastic membrane covers the surface of each fiber.