Which connective tissue surrounds a fascicle?

• A. Endomysium
• B. Sarcolemma
• C. Perimysium
• D. Epimysium

Answer: (C)

The connective tissue layer that wraps a fascicle is the one that groups multiple muscle fibers together. A fascicle is a bundle of fibers, and it’s encased by a sheath that organizes and protects that bundle while housing blood vessels and nerves needed to nourish the fibers inside. The other options refer to different levels of organization: the layer surrounding each individual muscle fiber is the endomysium, the membrane lining a muscle fiber is the sarcolemma, and the layer surrounding the entire muscle is the epimysium. So, the sheath around a fascicle is the perimysium.